First off, I've been finding a ton of symptoms that aren't really that bad all over my body and worrying way too much about them constantly. The past few days i've had some vision weirdness where i don't feel like i'm completely seeing how I should be. Like if I look at solid colored walls it doesn't look completely solid colored, it's kind of glowing in a weird way and looks grainy. Same with when I look at the sky. I just gave up Smoking cigarettes and marijuana, and I'm wondering if those could be problems coming from that?
Then today for some reason my neck was hurting in the bottom left and it seemed like it could've been my throat, even though I have no pain when I swallow or anything. So I decided to look at my throat with a flashlight in a mirror and i noticed my mouth seems oddly colored (yellowish/grey in some spots) and in the back of my throat there are dark veins and what appear to be little red bumps but a slightly less red bump in the back left side? It looks kind of white, but not like bright white. I'm just really scared that I have throat cancer or something of that sort. But again, there is no pain minus the pain in my neck which I'm pretty sure is coming from sleeping weird on a couch last night, because my back is sort of sore as well. Any ideas?