I am 19 years old and have been dealing with headaces for about 3 years now. they first started after a ski crash that i had. advice?

See your doc: If you have not already done so, you really need to see a doc. Because you had a head injury and are not experiencing headaches, you need a thorough evaluation to find out what is going on. Be seen soon.

Post traumatic HAs: Sounds like you have post traumatic headaches. There are some medications that are helpful. If you see a neurologist he or she could probably help you. Also make sure you're not in rebound headache aka medication overuse headache (google them).

See a doctor : The cause of the headaches probably is due to the accident. Neck and jaw issues can present as headaches as the pain will radiate from these area. See a doctor that is trained in head, face, and neck pain. You will need a proper examination and proper physical therapy to rehabilitate the muscles. Go a google search for a doctor trained in trudenta. It will be worth your while.