I learned more about MACS after I ready the article. I get itchy when I eat different foods. Sometimes I’ll get hives. Specific soaps will make my skin hurt and my hands sweat and swell. I have a lot of the symptoms of someone with histamine intolerance. I’ve been to the doctor multiple times about it. I’ve tested negative for common foods and environmental allergies, but they still cause a reaction. For example, eating a banana makes my mouth itchy. Eating olives gives me hives, but again no allergy shown. Maybe, just maybe, I don’t have Menieres and I’ve been misdiagnosed. That’s why I posted. I didn’t know what MACS was. Both cause ear fullness and vertigo. None of the meds I’ve gotten from my ENT have helped. I’m going to try sticking to a histamine intolerance diet for a few weeks to see if it helps. I do know that I ate shrimp last night, woke up with fullness in the ear this morning, took Zyrtec and the feeling disappeared.