Hi. I noticed a bump on the inside of my lower lip. At first it felt like I had accidentally bitten my lip. A day after the bump popped up, there was a small bruise on my face where the bump is. The bruise went away, but the bump is still there, yet much smaller. It’s been the same size for almost a week. Since the bump first appeared, I have had a constant headache. Please help. I am so scared I have cancer.