Hi. I think my immune system is basically nonexistent. I live a healthy lifestyle, exercise daily and sleep well. However I have been experiencing numerous never ending bouts of ridiculous illnesses. In the past 3 months I have experienced a chest infection that turned into pleurisy, 2 weeks later I got shingles that lasted 1 month, a week after recovery I got an infected abscess in my breast that resulted in emergency surgery. Then an infection followed by many more. What is wrong with me?