dude that is exactly my symptoms
woke up on a sunday morning (like 2:00 am) before christmas to go to a party that evening, had a cough. throughout party felt progressively worse and isolated myself to the car basically when i arrived ( didnt want friends and family to get it) got home and slept for 14 hours mixed with chills, sweats, fever, and aches. had i known i was coming down with it like that i would have stayed home altogether. went to urgent care after 6 days of coughing (fever had been gone 5 days or so) and they put me on a nebulizer (first time ever on one of those) and gave me a steroid pack, z pack i think, and an inhaler. kicked it 4 days after using that stuff. it held on long, did not want to let go
no one at the party caught it. my mother did (she is in her 70s) and kicked it with less trouble than i had. my czech buddy i saw back in december said he got sick in mid january a week and a half after returning from US
this is by no means concrete evidence but im thinking this has been here the whole time
They are working on an antibody test that I plan to get for our family.