No doubt coughing is a symptom. Just saying coughing is a symptom of a ton of things. Also, it doesn’t take coughing to spread it. Just anyones breath. So in a theater, the person directly next to you breathing normally can just as easily pass it on (if you sit next to them all show) with a normal exhale if they are Covid positive. It’s a crap shoot either way IMO.
Regardless. You have it now, so maybe consider cruising soon after you recover if you can. Why wait until November when your immunity will be at its peak in a few weeks. You could cruise later
this summer knowing it would be highly unlikely you get Covid no matter your exposure.