I noticed just yesterday that above collarbone on left side is what feels like a fat hump nothing but fat in it no hardness or anything. The thing is my other side does anything like it I know sometimes one side could have not fat than other but I’m also not feeling good for a week I’ve had sinus infection and I’ve been waking up swearing behind neck and everything this makes me worry it’s lymphoma. I also don’t feel anything when I lay down it’s noticeable when I’m up though. You think this could just be fat or is a tumor or something I’m very worried