If you start feelin "off" and it lasts a couple of days, it would make sense to be tested. It is way less debilitating if caught early and treated promptly.
The medical profession generally won’t treat mild covid symptoms. They uniformly tell patients to go home and report breathing problems or high fever.
Better to self-medicate (even before symptoms) with quercetin, zinc, vitamin D, and NAC, and keep ivermectin for when symptoms appear. Other anti-virals don’t hurt.