I have had my female Russian tortoise for two years. She was small when I got her and she has grown a lot. In the last week she has not eaten much of her food and is eating her substrate. I use reptibark and coconut husks. She typically will have romaine lettuce, red leaf lettuce, radicchio, and occasional spinach and kale. In the last week she has been restless as well. She appears to be trying to get out of her 2x3 foot enclosure. I don't know what to do to get her to eat her food and be less restless. Please help