Suggest Remedy For Pain And Soreness In Neck And Head

hi, i slipped on a hill in yard and feet went out from under me and i landed on my rump then felt my head going back and make contact with the ground too. i stayed there for a minute to make sure everything was okay before i got up. went inside and tried to relax. i had also been working on the fence yesterday before this and was in uncomfortable positions using muscles i don't normally use. today when i got up, my neck and traps were in a great deal of pain. it is difficult to lift my head. i can do it, but it is easier to use my hand to help me. i'm concerned but truly want to avoid an emergency room visit.ideas?