Lump on the side of my head! Advice pls!

So about a month ago I noticed that there was a lump on the right side of my head, just above the temple, so I checked my left side and it was normal, so that made me panic a little but I didn't think much of it, and thought it's always been there. But then like a week ago I started obsessing over it, constantly prodding it. Now I have pain on that side, and it feels like a sort of pressure. When I press on the lump it feels tender and a little hard like a pea size. So right now I'm super stressed. Can anyone give me some advice please, thank you.

The reason you have pain is because you've been prodding it. I know it's tough, but stop, and let the damage you've done heal.