Irena-- You probably already know this but I have read that "pea" allergies are often found in those who have lentil or peanut allergies. They are all related.
I am allergic to all types of peas... I also tested allergic to navy beans. I do not have a peanut allergy but my niece does and I have been afraid to eat lentils because they are so similar to peas. It is important to know that pea protein is often used in dairy-free products and is buried at the end of the ingredients in the fine print. It's a big problem at my house because of the dairy sensitivities my husband and son have and the extra difficulty finding products without dairy or pea protein. Just a little FYI in case this is his issue.
So sorry you've had this scare. I hope you can track down the source soon.
