Hello, I'm a letter carrier with the USPS, yesterday while at work my eyes started  to feel funny and puffy. Today while at work they got worse, had a lot of sneezing with up to 7/8 sneezes in a row. While out on my route my lips swelled up, tongue swelled so bad I had trouble shutting my mouth. Concerned it would swell to the point I couldn't breath I went to the er. They said I had an Allergic angioedema, gave me give antihistamines, benadril, steroids via a IV tube and scripe for prednisone. After the meds were given relief was fast. My question is this, the Post Office is an old building, with know roof problems and known black mold. Could the black mold have been a trigger?

Summarized question: Could the black mold trigger allergic angioedema?