Speaking from experience, this is truer than a lot of people realize. My daughter is prone to ear infections so unfortunately is on a course of antibiotics every few months. They do their job, but also leave some digestive issues that probiotics do a great job of taking care of. While I have no experience with the symptoms you’re describing, I will say that I’ve seen antibiotics help issues like this, but then leave what appear to be minor digestive issues after. Probiotics, as suggested, have helped balance out the gut and correct those left-over issues.
Edit: I wanna add that I'm not recommending treatment for reptiles based off human medical treatment lol, just offering an opinion based on my limited knowledge of the subject.