Last couple days it's been hot day and only had the windows opened all the way but no fan or AC. Now since last night she has been not eating much. We have her cage door open so she can get out of cage. What else should we do so she will feel better? I remember she was panting like a dog except no tongue stick out like dogs. What should we do so she will get better? She did eat the celery but not pellets or lettuce. Is she acting like this because she need more exercise or is it from the weather?