I was taking plenty of d, c, zinc and quercetin in May. I went to a 3 day music festival. Afterwards, I got covid. (2nd time) my only symptom was crushing fatigue. For about a week. I’m sure my healthy supplemented body kept it from being worse. We will all be exposed to pretty much all the viruses. Prevention is the best way to get a lesser case.
You might consider some of the post-CoViD treatment suggestions offered here just to head off any unforeseen long term effects. You were taking OTC meds prophylactically prior to infection; there are some good offerings listed here, e.g. resveratrol, CoQ10 and magnesium, good antioxidants that might help promote autophagy - the process of cleaning out CoViD remnants from the individual cells and restoring them.
Immunity might be strengthened with loratadine {Claritin} and famotidine {Pepcid}. 🤔