It's called Cutis Verticis Gyrata. I have seen people with this condition and as a nursing student was curious to find out what it was. I figured you all would appreciate being able to put a name to the symptoms it sounds like you are describing.
Google images has some good pics, just type in the above name.
emedicine.medscape.com was also very informative.
Hope I was able to help you all.
i have this same problem. i have had my hair short for about 5 years now and never noticed them before. recently i let my hair grow out and when i cut my hair short again they were there. i have found a possible common relation to our situations. i too suffer from stress and anxiety so it may very well be that this is what it is.
my brother has the same thing, is there any update on what this is?
hi, i have exactly the same type lines as you are describing.
I have noticed them over the past year.bbI have been suffering from stress and anxeity for about two years and started getting a lot of muscle tension and tension headaches. Sometime later I noticed these lines on my head. I think they are muscle related, due to tension. I have not found a way to relax these muscles as yet but I am hoping in time as my anxity and tension is getting better the lines will subside.