Have you checked your windows for spiders? Spider bites don't cause any pain or stinging initially - but do cause bumps wherever they bite you. Since these are on your head I think they could be biting you when you are asleep. If you don't have spiders or other insects in your room, check with a doctor. But I would vacuum the bed, wash the curtains, clean the windows and the floors. Some insects such as the kissing bug can cause nasty diseases. Do you have pets? Check them for ticks and fleas. - I hope you find out what is causing the bumps.
I've had the same thing for about a month and I'm getting blurred vision and dizziness. I have been unable to go to a doctor due to being uninsured. Does anyone have any idea what could be causing it?
In addition today I awoke with another lump on my head higher up. I am a little bit woried. Does anyone have any advice. They lumps also seem to burn as well.