straigthing of hair?

If it's causing you headaches..You might be pulling on your hair to hard. It can cause fried ends, heat damage, frizziness, and so on if you do it too often. But no, it should not cause headaches.

It shouldn't cause headaches. Be careful not to burn yourself, your hair or your scalp. Don't pull too roughly either as I think that might hurt your head. You don't want to straighten your hair all the time tho, it damages your hair. Try using a shampoo or conditioner that protects your hair from heat damage so the straightening won't fry your hair.

I don't think it would cause a headache. Probably more heat damage than anything if you use a flat iron. You could always try a reverse perm at a salon.

no it doesn't but some straightening products may be irritate your scalp that may cause pain during the straightening process.