Thank you....it does appear to be an exercise induced food allergy.  I am now trying to confirm Azodicarbonamide or other...thanks for your help, Dave

Eagle57555, have you also considered exercise induced anaphylaxis?  It's a type of allergic reaction that only happens when a certain food (often the culprit is wheat, but can be other foods) is ingested within a few hours of exercise.  The food alone doesn't cause a reaction and the exercise alone doesn't, either - but the two combined will.

I hope you find some answers - you seem to have done a good job narrowing it down!

Eagle57555

Just wanted to let you know, Penny hasn't been at the forum in ages. Likely will not be here to respond.

Dude, loved your story....I have suspected that ADA is my culprit also and have been looking for others with the same problem for a couple of years. ...I am usually affected by pizza, burgers and I am most impacted when I walk or exercise shortly after eating. ...I get hives and can pass out if I don't lie down. ...what is the latest from your side?

For years, eating at most fast food restaurants including Subway, Burger King, etc. gives me asthma and coughing fits. I'm not into junk food but sometimes when traveling there aren't other options. My allergist doubted that it was an allergy, suggesting it was a vocal chord disorder or a swallowing issue but a video esophagram showed I had normal swallowing. It also didn't explain why only some foods caused the problem. The allergist asked for me to bring a food that caused the asthma/coughing on the next office visit, and eat it while  there. I ate a Burger King hamburger in the office and had my usual reaction to it. He did spirometry tests which showed an asthmatic reaction that was bad enough to require a breathing treatment. He suggested it was a food additive but I've not had any luck in finding the culprit until a couple of days ago. I avoid fast food like the plague but sometimes regular restaurants will cause a reaction.

A few days ago while traveling with friends, they wanted to eat at Subway. I mentioned why I can't eat Subway food and one of my friends remembered reading an article about Subway's use of a nasty chemical in their bread, that they have since discontinued; azodicarbonamide. Out of curiosity, I ate at Subway and had no reaction! I did some googling and found this additive to be the common denominator in the foods that cause me to have asthma. Interesting that I don't have this reaction to food in New Zealand and azodicarbonamide is not used there. It is linked to asthma and allergies. Googling it has given me some conflicting info in that respiratory and asthma issues are caused in workers who inhale it rather than by eating it. I'll do some more checking as I am skeptical by nature, but I have too much personal 'evidence' for me to disregard this.

I'm posting this here, hoping it might help someone else.

https://en.wikipedia.org/wiki/Azodicarbonamide