Brandy, My daughter had 4 months of diarrhoea with 'no apparent cause'. When I took her off soy, it cleared up. Also, you doctor may have been thinking that wheat or gluten are the potential cause of the problem. Diarrhoea is a common symptom in that case. I also wanted to say that anaphylaxis is not the only symptom which comes on quickly. I am allergic to casein but not 'anaphylactically'. My response is immediate (within an hour), strongly emotional and last for days. Keep track of the twins' moods; are they fussier than usual? It may not be overly dramatic. I know that I have suffered from depression since I was about 5 yrs old (from what my mother tells me, and what I remember) and if I avoid dairy, I'm balanced. When I accidentally ingest casein, I am very tense and stressed within hours, totally withdrawn by hour 12, borderline suicidal from about 24 - 72 hours from ingestion, back to withdrawn and shaky (but seeing the possibility of 'clear skies') from then on. In total, the cycle takes about 4 - 5 days. (Oh, and 'lactose free' milk actually has lactose but it also contains the enzyme lactase. My husband tried it but only purchased it once. He said it was too sweet) Jacqui