Thanks for all the replies guys. I am doing better now, and it seems getting the steroid shot directly into the inner ear was critical in the early days. My hearing hasn't returned to 100% normal yet, but I'm in the mild range, and can hear pretty well out of the ear. Doc says it was either a virus or the Cialis. Most likely not Meniere's disease. Also MRI came back normal.
I asked him to expand on the Cialis theory a bit more, since he agreed that all of the studies out there show correlation but not causation for the high number of guys on Cialis (and even Viagra) that experience sudden hearing loss.
He said that his theory and other ENT specialists was that the drug relaxes vessels around the ear, causing blood that is in the ear to leave the inner ear, or lower the pressure of the inner ear -- effectively reducing blood flow to the inner ear. The other theory was that any kind of blood pressure change to the inner ear was potentially damaging.
As of today, he did give me the all clear to return to a mostly normal lifestyle, however -- he did say that if it was him, he'd avoid Cialis because it stays in the body for so long. He recommended using shorter term PDE5's that will be out of your system in a matter of hours rather than days.