I had this last year in November and it went on for three months. Ended up being a neurological cough. Unproductive cough with no other symptoms. Never terrible but worse when sitting and talking and went away when laying down in bed. At 1 month I was worried it was blood clotting (living with vaxxed person). Shortly after developed left-side chest pain. Was really worried at that point and went to ER. Cleared for clots and heart issues. Pain was from inflamed diaphragm from coughing so long. Developed spasms in my calve muscles after cough started subsiding. Really intense for a week or two, like bugs pulsating underneath my skin. After researching about pulsating calves being a neurological issue it clicked my cough was probably neurological as well, confirmed with further research.

But, yes, probably shedding from living with vaxxed person who is definitely vax injured with neurological issues. Normally these issues come from a pinched S1 nerve IIRC but that definitely wasn't my problem. Thankfully I am 100% now.