I have a female spider ball that I got a little over a year ago. She was actually bought as a male but come to find out he was in fact a she. She is about 700 grams. For as long as I can remember she has seemed sorta "retarded" for a lack of a better word. When she moves along, alot of times she moves on her side or upside down. She doesn't have twitching fits but when she's raised up she does sway back and forth. Any ideas?

