Ive had Sarah ever since i was in 5th grade. now i graduated h.s and am in college and all of a sudden her attitude’s changing.She has ALWAYS been terrified of me and my mother. ever since we got her from the pet store. I remember in her early years she was very happy. she would run around and jump all the time. As the years went on she stopped being happy. she would never let me cut her nails because she would bite me and/ or get so scared she would pee on me and she would chew on EVERYTHING. (wall paneling, doors, carpet, anything that was exposed) So its been about 7+ years since i had sarah and shes starting to bite me even more. and i dont mean happy, love bites. i mean she LUNGES for me. she was never fully comfortable around me that she would come up to me and lay in my lap or be calm when im petting her but now shes biting me more and im hoping shes not reaching the end of her lifespan. also shes starting to take more naps in very “death-like” positions. one second she’ll be sitting and the next she’ll just collapse to the bottom of her cadge. only way i know she isnt dead is because i check that shes breathing but its really concerning me :c (also apologies for all the spelling and grammatical errors lol i was typing this pretty frantically)

any advice would be great  Dont wanna loose my bun bun and any way i can help her would be great