sometimes its better not to know

i think i have an allergy.  or at least an intolerance.  this is not new information.  i think we have discussed previously that i have something going on with balsamic vinegar.  it makes me break out in welts.  huge ones.  so i have been getting this premade salad from the salad bar at the whole foods.  since my surgery, my skin has been the best it has been in a million years or so.  ok, that is a lie.  when i was still in the hospital my skin was ok, but then it got REALLY bad for a while.  it was terribly disgusting.  but now it is better, i think i was getting rid of all the horror that had been pumped through my system before.  so i have been eating that salad and low and behold some of that skin problem came back.  sheesh, so now i have been  week off of it and my skin is better.  dude, allegedly it is the vinegar and NOT the salad greens.  whatever.
so i have also been indulging in the fresh pineapple.  omg, i love it.  when i was younger i had issues with it in that even the thought of fresh pineapple would make my face start to sweat.  it was weird but that seems to have passed.  now i eat it whenever i can.  so i have been eating it every day for like, the past 3 weeks since i have been back at work full time.  so thursday i started to have some distress.  and it was really bad on race day morning (i did a 10k!!  was exactly 2 minutes slower than my 10k pr on the same exact course, but pretty pleased with the result since i sorta had some brain surgery and radiation and oh yeah, major stomach issues that morning, so much so that i was like ERIC WHY ARE YOU DRIVING SO SLOW!! and i almost didn't race.  good race tho.  trying to be positive about it, the pace was actually really slow, i was never sure why my 10k pr was so slow anyway, but whatever) anyway, the distress has been continuing every day, like its really weird and today i decided maybe i am alergic to pineapple, cuz like i ate an entire one. so i did some research on the internets and this is what i found:
"After eating a large amount of pineapple, you might experience swelling or tenderness on the lips, inner cheeks and tongue. Typically, this reaction is caused by pineapple's meat-tenderizing properties, and it should resolve itself within a few hours."

http://www.livestrong.com/article/407906-pineapple-side-effects/#ixzz2AqLQIMem

so i'm not having that type of reaction, but WHAT??  what does this mean:  this reaction is caused by pineapple's meat-tenderizing properties

what?  is that saying that the pineapple is tenderizing your body because it is meat???

so not ok with that.