With Cfs, Lyme,Fibromyalgia,Lupus and many other things ingesting MSG will make matters worse. Unfortunately MSG is in so many things disguised. The food manufacturers have gotten rather clever at hideing it. Some products even say NO MSG and still contain it. I suffer from LYME and Fibromyalgia and IBS. I have gotten control now, but it has been a struggle. MY son has Desert Storm Syndrome. All of these things are effected by our foods. If I can help steer you in right direction, contact me and I will give you some web sites to took at. I'm also writing a book because their are so many out there that just can't find help. Believe me that symptoms are often delaid and that is why you don't associate it with your foods.