The lymph gland on the right side of my neck is swollen.........approximately 1 week now. I have taken Doxycycline for 4 days. I went to my physician with a mild sore throat and difficulty swallowing and he said I had a virus. Feeling very tired. Having pain in my right ear (I do have Meniere s disease). My ears were clear at the physician office. I had mono at the age of 35, but both sides of my neck were swollen at that time. I recently just had shingles, a mild case. Could there be any correlation between these 2 viruses? When the mono virus is present, can the lymph nodes on just one side of your neck be swollen? I feel the same way as I did when I had mono several years ago. The gland is slightly smaller now, but still palpable and causing some difficulty swallowing. I am 55 years old now. I had a recent small CVA due to a clot passing through a large PFO in my heart which I had repaired 9 months ago. I feel since then, my immune system has been altered, if that is possible. I seem to get sick so easily whenever I am exposed to someone who is ill. I am a nurse, but recently received my disability due to vasodepressor syncope and the effects of the CVA. Could this be mono? Also, what can I do to boost my immune system?