Allergic to Eggs or what ?? I am baffled

The last two days after eating an omelet in the morning I had sort of an attack. Mind you my normal breakfast is usually a banana and I dont eat that many eggs.

Yesterday since i had a 2pm dentist appointment i decided to eat breakfast and skip lunch.

I ate a ham and cheese omlete, about 1/4 of my home fries and an english muffin.

About 5 minutes later in my car I noticed I developed a slight uncontrollable dry cough for maybe 10-15 seconds, sneezed once, then got the sniffles. No big deal but I have noticed this cough, sneeze, sinus scenario before.

Also total exhaustion about an hour later.

Today I had to meet someone at 11 and thought gees that omelet was pretty good, maybe I will go out again for a late breakfast.

Had a Bacon, cheese and tomato omelet, home fries and an english muffin and the exact thing happened again only this time much worse with the uncontrollable cough and then a single sneeze, then sniffles.

An hour later nap time again.

I do seem to be get a reaction from an egg salad sandwich since it sends me straight to the bathroom, but fried eggs over easy dont bother me.

One thing that I do think I am allergic to is nitrates . A few time when I have gotten a huge dose, like in an italian sub, hotdogs, they seem to have triggered a bad headache.

At one time I thought I had a gluten allergy, but then one day as a test I sat down and ate 3 bagels in one sitting on an empty stomach and got no reaction.

What do you think ????????

I am a bit concerned about this uncontrollable dry cough.