Can I get some assurance 🤨

So I posted an update of this eleven year old leopard gecko I adopted from Craigslist, who was severely underweight. Now she’s gained a significant amount of weight which I’m extremely happy about. However she seems to be walking kind of odd. I’m thinking it’s because she’s not used to carrying the extra weight but I want to make sure it’s nothing more than that. Her having to lower her head and kind of dip it to walk is kind of concerning me. Any and all advice/suggestions/questions are greatly appreciated 🦎🦎