my daughter who is 30 y/o developed a headache followed by enlarged lymph node in the back of her neck and tender lymph node in her axilla (not enlarged), and severe joint pain in her knees, ankles, back. no fever...but has felt ill. this has been over the last several days and the joint pain is getting worse...no previous hx of any probs with joints...she does remember getting a lot of bug bites a wk ago, other than that, has been feeling fine. Her children have not been ill