I have to agree, when they were in my head, the headache was so sevear, and I could tell it was my brain, I kept telling everyone, it felt like my brain is swelling, of coarse nothing ever showed up on any tests.
Even tested for kiari one malformation.
And there were NO pain killers, that could even touch the pain...not even straight morphine.
Finaly we tried neorontin, didnt kill the pain, but it touched it, enough that I could live.
And the feeling of them crawling out of the brain with treatment, was very snake slithering like...ya