(Manufactured with the use of poison fungi, manufactured citric acid - misleadingly labeled “citric acid”) is ubiquitous in foods, beverages and other products.
If I make the mistake of eating more than a very small amount of this additive I have about 24 hours before visual auras- blanks in my field of vision- then the migraine strikes 30 minutes later and then the nausea- vomiting. And four hours later a gradual decrease in pain.
Thank goodness my mom told me about this trigger. For anyone who hasn’t found out the cause of their migraines- try eliminating citric acid.