If you've been out of the country recently you may need to have a Tuberculin skin test. Tuberculosis can cause night sweats, chills, cough, fatigue, fever as well as other things or can be asymptomatic. The skin test isn't painful, just a bit uncomfortable because they create a tiny blister under your skin and check it 48 hours later for a reaction. You might be taking medication that causes these side effects. Best advice is to just go see your doctor to make sure you don't have any infections.
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