You need to isolate and test regardless.No, congestion is normal with a viral URTI and doesn't usually need a doctors visit, you can self manage at home. If it is not improving over time or worsening yes definitely.
I haven't been tested because my nephews came back negative and they were the only people I've seen. Also, if I'm not improving on antibiotics what do you suggest? Er visit PCP visit? Just wait it out? My chest congestion and wheeze is bad but I'm not running a fever, no chest tightness, I'm not getting worse but at the same time I'm not improving.