This sounds very much what I had in Feb - April this year. I was hospitalized 3 days, then another overnight. Needed a nebulizer and inhalers. Negative for all viruses on the big virus panel including pertussis, no pneumonia, and negative for all 37 allergens on the allergy panel.
Scary coughing spasms. Came on quite suddenly while I was on a flight; I coughed all the way cross country. I’m terrified if it happens again. I always pack my neb machine when travelling even though I haven’t used it since April.
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