I find that a little normal because my tortoise does that too. Have you been giving it different food? If not try picking some weeds (un-treated) from your lawn! If you have roses you can feed them that (just the petals and leaves) my tortoise loves kale, spinach, and spring mix. Try getting those for your tortoise. My tortoise won't eat a lot but that's ok they can go a long time without eating. Also if it's the winter they tend to sleep more for hibernation but still wake them up and feed it! That's all the info I can give to you right now! best of luck