Bladder Retention

I am post 3 months prostate removal and seemed to be doing well in recovery. However, at about the three month mark I became very ill with flu/ Covid like symptoms. Fever, body aches, cough, cold chills, and the general feeling not well at all. About simultaneously, I started having very painful urinations and my bladder not emptying. Instead of going to my family doctor, I went back to my urologist. He only focused on my urology issue of burning urination and my bladder not emptying. I had a bladder scan, ultrasound, a CT Scan and finally a cystourethroscopy. He found nothing he and told me nothing except that my bladder was not functioning. I was sent home with a catheter with a return visit in about a week. Has anybody else had anything remotely similar to this?