HI, I have been having strong pain and discomfort in my shoulder. I was prescribed naproxen, and a couple of days later I had very bad chest pains, and aching, I found it harder to breathe. Went to see GP who said I had a reaction and prescribed Co-Codamol. I have since then 4 days ago felt like I have had tonsillitis. This has gone down now but I have had several dizzy spells today and chest pains are coming back. I have also noticed some red bumps on my face and neck. Could I be having a reaction to Co-codamol as well?