Thank you for your time!A few weeks-monthsNo sensitivity that I've noticed in particular
Not that I know of
They come and go.
No they don't.
Sometimes twisting my head in certain ways causes slight relief, but they're fairly persistent. However the pain I would only rate minor; it does not hugely interfere with my day-to-day life. What I worry about (which is probably pretty stupid) is something more serious like a tumour or stroke.