My Hermann's tortoise is experiencing some shell cracking and theres a small hole thats really concerning me. The hole is making me think shell rot, but the humidity is very low for the winter, so I feel like that doesn't make sense. I dont usually soak him, but he has a large water bowl in his enclosure with about an inch of water that he always has access to. Is the damage perhaps from parasites or something from not changing his water often enough? Also he has a little bit of eye discharge. I'm not sure if I should be concerned about it because otherwise his eyes look bright. He is active as ever and he has a good appetite. Please help. I'm worried about my baby. I can take him to the vet if I need to, but money is a bit tight so I'd rather not if I don't have to.