Thanks for all the suggestions. I think I'm just having a flare-up..No stress-well, no more than usual!- and I haven't been exposed to any loud noises. This hearing loss is usually preceded by a very loud increase in ringing, followed by reduction in hearing. This is about the third time in a year that I've experienced it since my diagnosis.
However, the shl and ringing were the first symptoms I had, just about a year ago, that prompted me to call an ENT. The first time I had it was last March. It promptly cleared, so I ignored it. It came back two more times, with the second time being very severe, last Easter, as a matter of fact, and then I called the doctor. I had the MRI in May and then the diagnosis. I've had two more MRIs since, but so far there has been no further growth. I'm anxious to see what happens this May-hopefully NOTHING!