Judging by the photo, I don't really see anything alarming about her feces. Other than it being a little on the runny side....due to the fact that she's drinking alot of water.
I would stop with all the treats, mealworms, etc. and just give her the pellets....you may want to switch over to crumbles if they are available in your area and in the proper amount of protein.
The second photo of her is a little alarming....kinda showing signs of not doing so well!....but at the same time I can't think of or know what may be causing this behavior.
ETA- correct spelling