Is this normal?

[Raven knight]

okay so ever since my little sister was diagnosed with thyroid cancer at the age of 8, I have been a severe hypochondriac. I overthink everything and assume the worst. I have a bad habit of chewing or biting my tongue in my sleep and it always ends up with tooth marks. But there was a spot that I bit and me overthinking like I normally do, I've been super paranoid and wondered if it looks normal because it hasn't really healed. Sorry this is so long, but I'm just really anxious and I'm very OCD when it comes to anything dental. I'm adding a photo, could someone please tell me if this looks serious and I need to go to a doctor? It's those lighter spots on the side of my tongue