I have had, for about three weeks now,nightly fever of around 100, then around 2 am to 4 am, I wake up sweating. I also have some chest and shoulder pain, which is not as severe as it was 3 weeks ago. I went to the ER and they did a nuclear threadmill tests; said I had no heart blockages. I went to a lung specialist last week, who said my lungs appear fine, but ordered a cat scan in case, which I have not received results for yet.