won’t eat, won’t poop!

I’m making this post to see if anyone has something new I can try before bringing my bearded dragon to the vet! About a week and a half ago, Jupiter, stopped pooping and then stopped eating. He developed a slight bump in his spine, his vent looks different than normal, and his *man parts* seem larger. Other than that, he’s had a perpetual black beard. I know this means he is irritated, but he’s never had it perpetually before! He also has a swollen wound on his upper right arm that I have no idea where it came from. Occasionally I will try to put him on his basking platform, but he only sits for a few minutes then gets off. I’ve tried everything! His favorite food is raspberries, which he’s refusing. I feed him collard or dandelion greens daily, often with squash and he’s refusing them which isn’t normal. I also bought bee pollen to see if he would eat if that was on his salads, but no. He also is refusing his crickets.
I’ve offered him food every day that he won’t eat, and I’ve been giving him warm baths where I massage his belly to try to get him to poo. I’ve fed him prunes and olive oil and he managed to get some poo out a few days ago, but since then the behavior is still going on and he still won’t poo on his own. When he tries, only the calcium part will come out.
His temps are 91F on his basking spot and 81F on his cool side. Usually, that will be the exact temperature he’d love to bask at. I have the 150 watt ZooMed basking spot lamp, and a ZooMed T5 high output UVB strip light.
I’ve tried everything!! I know he looks skinny, he’s never been a very chunky guy but previously he’s always eaten very well.

How far is the distance from the UVB to the basking spot and is it in the tank? I would get the distance to 12-15 inches directly above your basking decor for the UVB I would increase the basking temp to 95-100-- are you only using the stick on for basking temps? You need a digital probe thermometer

Yes, the UVB is mounted in the tank. I use a handheld thermometer mostly, the ones mounted in the tank are for quick glances. I’ll attach a better picture of the basking arrangement.

Does Jupiter have any issues climbing the decor piece under the basking light? It looks pretty smooth - the mark on the leg looks like a possible bite but I am not for certain -- are you leaving crickets in the tank ? The black beard means hes in distress or pain -- the only thing I can think of w/ him not pooping and only urate coming out is hes blocked or impacted -- try feeding him some canned pumpkin w/ some olive oil and see if that helps- do you know if hes straining when he goes to the bathroom? And w/ him not basking for long periods of time is going to effect the pooping -- I would invest in a digital probe thermometer and check the temps w/ that vs the IR gun --- sometimes those IR guns can be off w/the material they are trying to read off of -- your digital is going to give you the most accurate and w/ him not sitting there for very long raises a red flag

He hasn’t had any issues climbing it before... since he’s not basking now I usually put him up there to try and entice him into basking. It’s possible a few crickets are left in the tank but I always try to take them out if he doesn’t eat them. He did a small normal poop today which was good, but prior to that he has been straining sometimes trying to go. Thank you for your help, I’ll try the canned pumpkin and olive oil today!

See if the pumpkin helps w/ the bathroom thing but w/ him not basking like he should its going to effect it because the temps are what start the digestion process going-- in the mean time I am going to flag your post to AHBD to see if she can give some insight on the mark on the leg --