As he was basking today I noticed this ulcer like thing on his bottom gum and am so worried. I'm calling the vet first thing in the morning. Does anyone have any idea what it could be? He is still eating his bugs but not really touching his greens. He isn't basking as much and prefers to just hang out in his hide. I was thinking possibly brumation but after seeing this I'm wondering if it hurts him. Ughhh I'm so worried. I made a collage to show the difference. I rescued him in November and he got a great health check from his vet in December. I have never given him fruit, until last week he ate a blackberry. Just one. Could that have caused this???