Yeah, I had it around the same time (You probably had it).
My wife and I flew off in different directions (she went to Disney World, I took the kids to visit Grandma and Grandpa).
Anyway, we got back we got knocked down 1 after the other.
I was laid out for 2 days hard, then a couple more... then I had the sh*ts for several days...
Then I had the lingering cough like you which didn't go a way for a while. Had a spot in one of my lungs that hurt after it filled up a little, noticed after I took a big rip.
Then took another big rip to let the virus know who was boss.