What is the most logical next event?

How to diagnose food intolerance
Pay attention to the timing of your symptoms.
If you have a food intolerance, you won't see a reaction to the food you eat right away. A food allergy will result in a more immediate reaction.

Available options:
-Digestive symptoms caused by a food intolerance usually come on gradually over the course of a couple of hours. A food allergy usually results in symptoms almost immediately.;
-Avoid water near food that you are allergic to. This includes processed, baked, and microwave foods.;
-You may experience another food allergy at any time of the day, but your symptoms will usually take over within an hour or two. Make sure you contact your doctor if you have an unexpected food allergy.;
-Look for some swelling, redness, or taste loss. This may indicate that there is something wrong with your food.;
Digestive symptoms caused by a food intolerance usually come on gradually over the course of a couple of hours. A food allergy usually results in symptoms almost immediately.