Neither my husband nor I have any allergies to anything, neither environmental nor food. *shrug*
I'm beginning to explore the link to yeast, food allergies and "leaky" gut. I've found some information on acupuncture sites. This, like you, to try to understand how this all came about. Allergies are a body in distress, right. Overactive immune system response is how one specialist described it.
It's nice to talk to someone open to alternative healing.