I am wondering if I might have an immunity deficiency? I am a teacher of 31 years and never used to get sick very often - sometimes years would go by between illnesses. But this year and last, I seem to be catching everything the students catch. I am getting sick every month and missing a lot of school and life in general, sick in bed. Right now I'm starting my 3rd week with Type A Influenza, after just getting over Strep throat. High fevers, chills, vomiting, severe cough, earache, etc. means I will probably spend my Thanksgiving in bed. My Dr. treats each illness, but doesn't seem to be looking at the big picture. Should I request tests be run to check my immunity system?