Help Please - Bump On Head

Basically a few weeks ago I found a bump on my forehead, it's visable but only when you catch it in the right light. It's not a big lump, people only notice it if I point it out or ask them to feel it.

There's no pain when I touch it, but ever since I discovered it i've started getting slight head pain nearly all the time. However, before I found it, I don't recall any pains, so could this possible be psychological? I worry about it none stop, it's all I think about and I keep touching it. I've managed to get an appointment to see the doc but it's not until tuesday.

The only pains i've had are the head pains, which like I said, occured after I discovered it. I've not felt dizzy, had a migraine type headache, suffered memory loss or been unable to recall the names of objects, there's been no numbness that I can remember. Sometimes I get ringing in my ears, but this is only every so often and it only lasts 30 seconds at the very most and I don't remember having it in the past 2 weeks.

This morning I woke up and I felt amazing, I wondered if seeing the doc was silly because it only seemed to be a small bump. As the day goes on, however, I start to become more worried about it, and that's seemingly when the pain comes back.

Any help with this could be greatly appreciated, thanks.