First off, I, just like all the others, want to say what an amazing job you have done with Dino ! We throw the word " amazing " around, but it really fits in this case. I hope she lives a good life after her brave and unfair battle with this horrible condition. As far as gaining weight/ brumation question, they don't automatically gain, it's generally from eating surplus food....and some dragons just maintain an average weight when they go to sleep, not really spiking in weight at all. Her metabolism has slowed now, so it may very well be the meds. she's on and also just the fact that she is adult now, without the burning energy of a dragon who's body is utilizing every gram of nutrient as part of their building blocks of growth. She may not get sleepy at all, if she does, just keep her lights + heat at normal so she can't really brumate , her meds. can still be given, and she can be observed + handled as usual.