It's been about 18 hours since I've had a fever and my congestion is pretty much gone at this point.It was the same for me. But a couple of days after the fever and aches the respiratory symptoms started.
It’s doing things whether you realize it or not. Please add 1-2 low dose aspirin daily. And get some Emergen-C packets and do those daily.
If the respiratory symptoms start pm me and I will give you more unsolicited advice. ?