Hi, I am a 34 year old mom of 2 kids under 5. When I was pregnant with my first daughter, I refrained from eating MSGs. After birth, whenever I would eat chinese food, within 10 minutes of eating I would develop a severe headache in the back of my head, neck and shoulders. It would typically last about 15 minutes. I also noticed that it happened after I ate Doritos. I figured it was a sensitivity to MSGs. I have avoided MSGs to the best of my ability. This weekend though I had two in the same evening. Both occurred after drinking something with pineapple juice in it. I looked at the can and all it listed under ingredients were water, juice and ascorbic acid. Today I had another one after eating popcorn at a movie theatre. I am getting very concerned!