Thank you, your girl is very very pretty too! That is always great to hear she loves her salads! They can be so stubborn sometimes and more than likely will go on a salad strike at some point in their lives. She is an impressive size for a female at her age! I don't think my girl looked like her at her age. When I was measuring my boy weekly, I searched online for other peoples growth charts just for fun and he was always bigger compared to them so it is impressive that your girl is keeping up with my boy in size! Just goes to show how individual they are! If you want to for fun, you could check the base of her tail with a flash light and see if there's any hemipenes or not. I believe you that she's a girl but it would be funny if she was a he afterall!
You're with her everyday so trust your gut! If you think she is backed up, lay off the bugs a bit and just offer salads and baths until she passes stool. It won't stunt her growth or cause her any harm if she goes without insects and only offer salads until she poos. Healthy dragons won't starve themselves to death.
I doubt the dubia you're feeding her are too big, you would just feed her less of them than I did. I remember at one point with my boy, he started to slow down his consumption and holding out for bugs like superworms or waxworms and they're really bad as staples. So instead of letting him eat to his hearts content like before, I actually limited how much he got of everything but his salads so he would still be just a little hungrier for his next feedings.
You could lower the amount of food you offer until it only shows on her belly a little bit and then again when her belly has gone down. That would probably help with digestion. If I found a larger dubia that had just shed and was still white I would feed it off to my dragon for the ease of digesting it unless it was a potential breeder female dubia lol. I got pretty good at sexing and counting my breeders and the rest of my feeders before feeding them off haha.
I fed the smaller dubias to my boy because I just happened to have more of them at the time and was slowly building up the adults in my colony by purchasing them. But the dubia chitinous shells are softer when they're smaller too so it would be easier to digest. No harm in that! Especially as a staple.