I have had a very sore stiff neck for 2 weeks now. at first thought I had slept funny but the last three days I have had severe sweats, weakness, fatigue, sore throat, cough and STILL a sore neck and headaches. Saw Dr Weds and she put me on antibiotics saying I have swelling in my lymph nodes in my neck, I feel so ill I wish I was in hospital which says it all. what can it be?