Delta was the prevailing strain in Florida in August — sounds like delta. You were lucky.
Yeah, even after a negative test, I could barely walk DOWN a flight of stairs. My lungs were a mess. It took over two months to be able to do most things, but still wasn't 100%. Now, I am back to 99% oxygen (per my pulse oximeter). I feel great (as if I was never sick), and I remain un-jabbed.