It really doesn't sound like brumation to me at this point.
Yes, it is good that the trichamonas is all gone, hope it stays that way. Usually the vets don't give probiotics, it's something that you have to pick up to help restore the good gut flora that the antibiotics destroy and they help tremendously. Examples are Bene-bac gel (for birds & reptiles), Acidophiliz, soy yogurt (non-dairy), NutriBAC, AviBios. Any of those work well and even bee pollen would help to enhance her immune system functions as well as overall health maintenance. Giving a probiotic now for a few days or even the bee pollen might be something to think about.
How is her appetite now and does she still hide most of the time? What brand & type of UVB are you using now? Is that about 9" from her alongside the basking bulb?
Good that you're using a temp gun, those work well. What distance are you holding it when checking the temps?