I'm a girl, 18, and I always hump my pillow. I'm a virgin, I never put anything inside, not even a finger but I do pillow humping. These past few months I've been doing it a lot compared before (but I'm not an addict) and I'm curious if I should lessen it for medical reasons. It relieves my stress actually and it makes me go to sleep right after doing it so I like it.. and of course it feels good. So are there disadvantages of it? Thank you in advance.