I think i strainedmy shoulder?

i am 99% sure it's not a streined shoulder. It is a colabical or collar bone. it's the bone that you can feel right below your neck. it will hurt to lift or extend you arm and since it is so close to your neck that is why that hurts when you move your neck. it should be a good 3-4 weeks. Mail me and tell me what it is when you get it checked out.