Random Pains

I am an 18 year old female and I have been having random pains for the past year or so. I get a lot of sharp and pressure chest pains (right in between my brests), sharp pains at my temples (not at the same time), sharp pains in the cerebellum (mostly on the right, but sometimes on the left), in my elbows, and one time I had a sharp pain on my left cheek bone, and more. They only last about 30 seconds but im really worried because they happen often, I get at least three pains a day in different areas. I have also been a vegetarian for about 4 years (no meet, but I still eat dairy products), so I don't know if that is important to know. Please help me, I'm really scared. Thank you.