Since January I ve had an itchy rash pluse a feeling of something stuck in my throat and sometimes difficulty swallowing. I m on antihistamine and last week I had to have skin prick test done and had to go off the antihistamine and my legs and feet swelled up and a burning feeling and itch. The test showed no allergy. I ve also had blood test for immunoglobulin but the results are not back yet. My doc checked my blood for thyroid in february but it was ok. I feel quit tired also and have constant diarrhoea plus bloating and bad wind.