Course of action for sharp neck pain?

Hi all, Wanted to ask your advice on what to do or where to seek treatment for a sharp, constant pain on the left side of my neck. This pain started around October 5 and at first could be controlled by Advil. I believe that the pain was caused by my visit (first time ever) to a chiropractor. I went to 3 sessions. On the last session on Sept 26, I had a headache after treatment and then 5 days later experienced the sharp constant pain on the left side of my neck. I attempted to swim through the pain and just take Advil. However, one week later, the pain is so intense that I now cannot swim at all. As of yesterday, my shoulder and left arm are numb. It hurts to inhale deeply on land or in the water. I've alerted the chiropractor (although I will not go in for another session!) and am making an appointment with my general doctor. Advil, Tylenol and Aleve no longer work. Do you guys have other recommendations like: See a Physical Therapist Get deep tissue massages Apply heat and/ or cold Get X Ray CAT Scan Something else? Sux to not swim! :cry: Any advice is greatly appreciated!