Yeah, that's just her moving her head back and forth as she's looking around at what's going on, they see in full color, better than we do actually, so they are very inquisitive about everything! It's very, very good that she is as alert, aware, and bright as she is, she looks great. That's definitely not a "twitch" or "tremor" due to a neurological issue or any type of nutritional deficiency disease, as we both already mentioned your husbandry is very good, diet is very good, and she doesn't show a single sign of MBD or Vitamin B1 deficiency disease, which shows very similar outward signs and symptoms to MBD. If you ever see a dragon that is having tremors or a "twitching" due to either MBD, Vitamin B1 deficiency, or any other neurological issue, you'll know it, as it will be very obviously involuntary, like the dragon isn't even aware that it's happening, and the "twitches" are usually isolated to one leg, one toe, or the tip of the tail. By the time they start having full-on tremors or their heads or their necks, the disease is pretty far advanced, and this almost looks like a full-on seizure by that point. The beginning "twitches" of MBD and the like are very, very fast, isolated twitches that usually last for only a few seconds, and as I said it's usually a single toe, or the entire foot. If you've ever felt an involuntary muscle twitch yourself somewhere, like in your leg or even your eyelid, and you look down at your your leg where you feel the twitch and you can actually see the quick little "twitching" under your skin, it's like that. There is no mistaking it as being a neurological issue.
As for the Black Cherry extract, yep, that's it. I've seen people use that and there is also a "Tart Cherry Juice" that comes in a large, plastic bottle and is in with the fruit juice typically. The only difference is that the Juice is already diluted, so yes, you can do a 50/50 dilution on the extract and give that to her. Sometimes they like it, sometimes they don't, lol. Try to get her to take a couple of milliliters if you can to start, not a whole lot, but between 1-2ml and then repeat about 2 hours before lights out for bedtime. Hopefully you'll see a bit of improvement by tomorrow. I'd then give her another dose of it tomorrow morning after her lights have been on for at least an hour, before her vet appointment if you can, then you can give her more later in the afternoon. It's not got a lot of sugar in it, if any, so it's really dependent on how much she's willing to take. Hopefully she likes it and takes it without a fuss...my rescue boy, Nix, is not EVER amused by ANYTHING I have to give him like this, lol, he fights me every second. I think he has it in his head that if it's not on his terms, it's not going to be easy for me
He'd eat black cherries all day long on his own, but he'd spit the juice I was trying to give him out...little bugger....
As far as her fear of her own poop, lol, it's probably not so much a fear as it is they absolutely HATE the smell of their own poop (who can blame them). All 4 of the beardies I have had throughout my life avoided pooping inside their enclosures as much as they could, and when they do poop inside their enclosures they avoid it like the plague. My 10 month old girl Izzy did this last week, poor girl, she got down off of her favorite basking rock onto the tile floor next to it and did a massive poop. Well I was out for about 4 hours, and when I came back Izzy was on the opposite Cool Side of her enclosure, as far away from the poop as she could possibly get and squishing herself against the side wall, with her front feet up on the bedding dam and her nose pressed against the sliding glass door
I have no idea how long she was standing there like that, but she looked like her best friend died...I opened her door up and she flew out the door, across the kitchen and dining room and into the living room, and hopped right up on the couch and just sat there staring at me while I cleaned her house out...not my fault she pooped by her basking spot, little brat...
As far as the lighting/temperature situation goes, I know how frustrating that is, once you finally get it all correct and you have to change one little thing, it will throw everything completely way out of whack...In my opinion you want to keep the MegaRay instead of the Solar Glo, because as Tracie already mentioned the SolarGlo, for whatever reasons, has not gotten good reviews at all, mainly because the amount of
UVB light it emits is very inconsistent and typically not adequate. It also doesn't seem to emit adequate
UVB light for near as long as it should. The MegaRay is by far the best MVB available, and the PowerSun also seems to do very well, but the MegaRay is definitely the way to go if using an MVB. If you just got the MegaRay a month or so ago then it's fine, I have yet to hear anyone complaining that their MegaRay stopped emitting strong
UVB light sooner than a year old, at the least, and as Tracie said the MegaRay is definitely strong enough to sit on top of the mesh and will still penetrate more than adequate UVB and UVA light to your beardie if within about 12" of her basking spot. So I would definitely keep the MegaRay, and then use the Reptisun 10.0 T5HO UVB tube across the enclosure to provide a consistent
UVB light throughout the tank (I'm hoping your UVB tube fixture/hood has a metal reflector in it behind where the UVB tube sits). So if you can get the temperature gradient within the correct ranges using those 2 lights (sometimes people need to add a low-wattage, secondary bright white basking bulb in a clamp lamp over the Cool Side to get it up between 75-80 degrees when using an MVB over the basking spot, it all depends on your enclosure and the ambient, surrounding temperature of your house).
I hadn't thought about the fact that you said you had been using a SolarGlo MVB up until recently when you switched to the MegaRay, as Tracie mentioned that may have impacted the Gout, it wouldn't surprise me one bit, as I seriously have not heard many good things about the SolarGlo at all. The other thing I did think about but forgot to ask you, as far as the Reptisun 10.0 T5HO UVB tube you have, what color are the end caps on it? And how old is it? I've been using this same UVB tube exclusively for years with absolutely zero issues, I love the Reptisun 10.0 T5HO, but a month or two back Reptisun admitted that they had a couple of batches of specifically the 10.0 T5HO tubes that were defective and were not emitting nearly the amount of
UVB light as they should have been or as they usually do. It was an error in the manufacturing process, I guess. I got lucky, I had just ordered 3 24" T5HO tubes on Amazon when this came to light, but the ones I got were fine...if your end caps are gold and were purchased in the past 6 months, I'm pretty sure those are the ones that are defective, and I believe Reptisun (ZooMed) is replacing them for free if you take them back to where you bought them. Tracie knows the specifics of this, she will help to confirm this when she sees this, but I'm just thinking that if you were unfortunate enough to get one of the defective T5HO tubes (I think it was only the 10.0 T5HO tubes, I know you also have a 5.0 T5HO tube, so hopefully Tracie can answer that too), and then you also were using a SolarGlo MVB above the mesh lid, that might have been a double UVB whammy...