This sounds horrible and creepy. I don't have this condition but I know to some point what you're going through because I'm also suppressing my laughter due to hypersensitive esophagus.
@Sid - Justy's health took a downturn this past year, so she isn't here much anymore. Don't feel ignored if she does not respond.
This is a ridiculous price. You could make your own. Dxm is over the counter and quinine is easy enough to get . Alka Seltzer Gold worked wonders. I used it for 2 years. This was horrible when it happened. I did recently have a round of neurophysiological testing and I tested fine. No permanent damage . I am going back to work part time. ( in my case it was mold / environmental ).