I have pain on my scalp - approximately where the male pattern baldness is located. It usually lasts all day. When I lie down on my side, it goes away - so I sleep well. If I go swimming, the cool water alleviates the pain immediately. I've had every test, MRI, CT scan, X-Rays,etc. and no doctor can find the cause. I've had nerve blocks and have seen doctors from Boston to San Francisco - even the Mayo Clinic in Minnesota. The other day, I saw a dermatologist who told me I had pre-cancerous lesions in that area and she used liquid nitrogen on them. The pain stopped and has been better for a few days. However, each day, it gets a little worse. She says these lesions don't ever cause pain (in her experience). I am now suspecting that the pain is caused by nerve endings. All comments are welcome.....