Tramadol
"I take 100 mg "as needed" for chronic neck and shoulder pain after dual AFDC surgery which left me with some major nerve damage.  It doesn't totally relieve my pain, but it makes it tolerable. One dose makes me nauseous with or without food in my stomach. If I have a bad neck day and take 2 doses I will spend the night throwing up so I never take 2 doses any more."