I haven't thrown up in years!
Even my worst migraine never actually caused me to do that (but I always came close).
This is too weird for me.
My only guess is that all the major coughing I've been doing is weakening my cardiac sphyncter (the muscle around my esophagus where in joins the stomach). This is the same reason people get acid reflux (the weakening of the sphyncter--not the coughing).
So, I just took some Pepto Bismol (I'm glad I have some!!!). I'm feeling a little better, but I seem to have aquired the shakes.