Sore throat fever headache flu like severe body aches every other week for five months. Lil high ketones strep negative mono negative all blood fine.

Unexplained fever. Fever rarely lasts longer than a month, and this (if you've measured it accurately) puts you in the category of fever of unknown origin, which is mostly due to chronic diseases. Some considerations include: chronic infection (eg cmv, toxoplasmosis, mono), autoimmune disorders like lupus or vasculitis, cancer, leukemia, and very rare infections like histoplasmosis, coccidioidomycosis, q fever, etc.

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