The first garter that I ever collected looked to be at least 2 years old when I found her and I've had her for 5 years now. She has always been in very good health, never refused food, and over time developed little habits that I've come to expect from her and now miss. For the last 2 months she has been refusing food (still drinking lots of water), but she hasn't lost any weight yet. She doesn't seem to move around as much as she used to. I guess what I am asking is how long do they live on average, w/c I mean? Maybe I'm over reacting, but I'm worried.

She used to bang on the glass when she wanted to be fed, now she keeps trying to get out of her cage and she hasn't done that since I first found her 5 years ago.