Hi Brazil, I hope you're better since your 28 June post. I too had a 2-week bout with night sweats and high night fever two years ago. Sought the ER twice but neither time did they keep me. Luckily on the second visit they tested for Mono and came back positive. So I was pleased to have an explanation (even though, oddly, I didn't have the sore neck Mono is known for.) The other time I had night sweats was one year ago, for 2 nights, no fever. Perhaps it was anxiety from starting a new job in a new town, plus caffeine. I would love to hear any insights you've gained. I too had Dr Google tell me it was lymphoma (probably where my HA started.)