Hi, these are are my symptoms.. A knot popped up behind my right ear about 3 weeks ago. About a week ago 4 little knots popped up around it... when this knot showed up I started getting bone deep chills, I can put extra clothes on and be warm on my skin but it feels like my insides are still chilled.... My head, chest, hands and legs started itching about a week after and still itch for no apparent reason. I am developing a cough but can not cough anything up.. and I stay tired all the time... could this be just a viral flu or do I need to have it checked out..