Damn, man, wouldn't wish this on anyone. I'm certain I had it in January. I was down for most of a month, needing to sleep sitting up most of it due to the breathing issues. Dry cough, wheezing, feeling weak and many other symptoms. I don't get sick often, and when I do I don't take ANYTHING. I don't even do aspirins. During that month, I took aspirin and the night time cold medicine. It helped me fall asleep sitting up as it appeared to eat away at the mucous stuck in the back of my throat enough to help me breathe sitting up.
At the end of week two someone close who was worried gave me their antibiotic prescription. We still weren't hearing much about Corona yet, and it wasn't on my radar at all. I let another week go by as I got worse ( I had called out of work about 3 times over these weeks and I don't call out) before taking the antibiotics. Not sure if they helped with anything, or I just finally got better after another week (week 4 now).
Good call on the building immunity. I've been doing lots of vitamin B complex, C especially and D. The inhaler should help as well, so hope you got it in today. They say it hits people differently, but if it's like with me (I'm older and not in as good of shape probably), pan on it being with you for awhile.