I have been having these weird spells recently. The first time was about a month ago. We were at a seafood restaurant and I was eating steamed shrimp. About 3 shrimp in, my daughter noticed my chest was red and splotchy. I immediately noticed my ears started ringing and my heart was racing, and my hands were really shaky. I panicked, thinking maybe I was suddenly allergic to shrimp. A lady gave benadryl and my husband took me outside, and within a few minutes, I started feeling better. It happened again last week while I was driving alone. I pulled into the first store I came to, and there just happened to be 2 paramedics there. They said they thought my sugar had bottomed out. However, when they checked it, it was 90. My blood pressure was 130/92. I ve had a few of the same spells a couple more times in the past week. I also have the constant sensation of my throat swelling, and I have stayed dizzy and kind of in a fog, and keep having palpitations. Any suggestions on what could be happening?