OhMYGoodness! I thought I was been paranoid bc every time I ate pork I use to get a migraine headache so I stopped eating any pork and I did had less headaches. But it so happens on Thursday I had a craving for a boneless thin pork chops I saw while doing food shopping, and bought them (dear me!), after I ate them yesterday, all day long I had to drink something every 6 hours to calm down the damn headaches.
Like you mentioned here it could be the additives but is weird that you mentioning this gave me the certainty is the pork. No more for me the pleasure is not worth the pain afterwards.