/sci/, at what point should a self-isolating undiagnosed individual go to the ER / call 911?

This shit just keeps getting worse, man. I tried moving some boxes around to clean the place up, and now I'm coughing up a storm, deep heaving coughs one after another. Chest pain is mounting, it's still nowhere near as bad as when I had a tooth go on me but it's no longer just uncomfortable, shit hurts man. Having to breathe through the mouth just to feel comfortable, can't get the volume of air I need through my nose.

I can still manage, but... this is pushing the limits of what I'm okay with, and I'm honestly starting to get worried. At least my temp is still only 100.