Symptoms of food allergy on the circulatory system.. Decreased blood pressure, decreased blood circulation, arrhythmia, respiratory depression and fainting Symptoms of the circulatory system appear hypersensitivity (allergic shock), which appear in a low blood pressure and drop in blood circulation, arrhythmia, respiratory depression and fainting. Share This: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook