My question would be what do you mean by "She's been brumating a lot"? How long did she brumate for, or how many times has she gone into a brumation recently? And did you feed her any solid food during or in-between these "brumations"?" If so, then that's most likely the problem, as you should not feed them any solid food at all during a brumation, even if you wake them up weekly. If you have a dragon that brumates for long periods of times, like for a month or longer, it's perfectly fine to wake them up once every week, give them a nice warm
bath, give them a nice long drink of water, and then let them go back to sleep. However, if you feed them solid food and then let them go back to sleep for a week or longer, all of that solid food is just going to sit inside their stomach/intestines and literally rot. They don't digest any food in their stomach while they are brumating, so this can cause everything from bowel impactions/obstructions to infections and illness due to the food rotting inside them. So if you had fed her solid food and then let her go back to sleep for another week or longer, and since then she has woken up completely from her brumation and hasn't pooped in 14 days, I'd be concerned that she's impacted, and I'd start giving her laxative slurries consisting of a jar of Prune Baby Food mixed with 2-3 tablespoons of plain, raw, canned pumpkin, and then a little water to thin it out. The let her bask under he lights for a couple of hours, and then give her a warmer-than-average
bath for 15-20 minutes to see if she'll pass the impaction. It usually takes doing this cycle 2-3 times before they'll start to pass the impaction, and it may take 2-3 big bowel movements for her to pass the impaction completely.