I have this sometimes, but it hasn't happened since I've used better products. It would happen to me with styling products actually. Specifically hair spray. Gel didn't do it unless I used too much, but then hairspray did it everytime. Something in it your head doesn't like. If you can gradually circulate out one product at a time you may be able to figure it out. Luckily, I rarely needed hairspray so it was easy to notice those were the few times it happened.