sleeping tortoise

by Chrissie Rogers
(England)

I have a 2 year old baby med spurred thighed tortoise, as I have been told not to hibernate until 4 5 year old I have kept her awake, she is now sleeping all the time and only coming out of her hiding place every other day to eat, which she is not eating very much, soon as she has eaten she goes back to sleep and then comes out again the day after next, is she trying to hibernate or is there something wrong with her? It is now late December. Should I hibernate her? If that is what she is trying to do, she is in a vivarium with heat 86 - 90% degrees. Is this maybe not hot enough for her? I really do not know. Please could you help me.