My husband is 35 years old. Over the last year, he's gone from 220 lbs to 160 lbs (without trying), is very tired all the time, has horrible night sweats and headaches. He functions, for the most part, pretty well. He doesn't feel sick at all. He has Thyroid Disease and gets his levels checked regularly. His Thyroid rarely levels out (doesn't help that he forgets to take his meds sometimes)and this Doctor he sees, keeps changing his dosage. Anyway, the last 3 draws show that his White Blood Cell count was high. The Doctor told him that this usually means Leukemia or Lymphoma. So, this last draw came back and his WBC were down from 13 to 11.5. My questions is; can WBC fluctuate like that if he has Leukemia or Lymphoma? I don't particularly care for this Doctor and feel he has overlooked a lot with my husband. His advise was to wait a month and go back to get another draw and if the WBC was still elevated they'd figure it out then. Doesn't sound right to me, especially since he's showing the majority of the signs. Anyone out there that can ease our minds?