Oh my God, pole sana my dearest RVP
From what you've said it doesn't sound like Covid but pneumonia caused by cold. Pneumonia for the common cold comes gradually and takes weeks to months to recover. I recommend Tamiflu.
If it was Covid at the pneumonia stage and rarely does it get to this stage unlike the common cold, you would be in hospital on ventilators because it deteriorates rapidly however you don't fit the profile of Covid at pneumonia stage, tends to be very elderley and those with preexisting conditions.
Anyway, please eat lots, my prayers are with you even though I'm certain you're ok, please take care. x