I ran into somebody like this who had a bad reaction at work from eating at a potluck party.
We do not eat out very often because my wife is sensitive enough that she sometimes has had reactions when chicken or steak is grilled along side fish or shellfish. There are also foods like worcestershire sauce that have fish products in them. Even having French fries that have been fried with oil that has also been used to deep fry fish can cause problems. Fortunately, a small amount of contamination usually just causes her lips and tongue to swell and not completely obstruct her airway.
I see what you mean. Nevertheless, even though allergies run in my family, I can eat shrimp, shellfish all day long with nary a problem.
However, I DID develop an allergy to yellow jacket bee stings, after being stung about 19 times when fighting a hive about 10 years ago.
My face swelled up and I decided to stick it out and not call 911. (I was without my family at the time)
I’m lucky to be alive after doing so many dangerous things in my life. The Lord must like me, then. Doesn’t make any other sense.