I knew all along I had them on, but I was more concerned with fighting to pull through after my quadruple bypass surgery.I kept fighting and hating those. I was quite drugged up, so I wasn't completely aware even after they explained a few times. It wasn't until they started reducing the meds that I became more aware.
My lungs felt crunched and I had the full oxygen mask on til the 3rd day after.
But I'm doing fine today for being a fat old man!