Pizza and Mexican, I can see a possible common ingredient, but Teriyaki, I'm not so sure. All three have "hot" ingredients, but different "hot" ingredients.
Rule out other possibilities. I once had an abscess tooth that came and went. If you are due for a dental check, make sure you tell your dentist.
Another possibility is that it was from something left by another customer. A fragrance, trace amounts of something you are allergic to. I know I break out in hives when I touch a contaminated surface. Fabric chairs can hold an allergen within the weave of the fabric. Even washable surfaces can be an issue until they are washed.
I love that stores have handy-wipes at the door so I can "disinfect" surfaces. Others use them for virus germs, I use them for allergens.
I hope you find the cause.
I carry and Epi-Pen for multiple food allergies.
Heart Attack June 30, 2014
Diagnosed with Type 2 Diabetes