Hi nicknerd,
Yes I did with a bunch of other symptoms mostly at the beginning of my MG before I got dx and treated (Mestinon+ steroids). Nasal regurgitation was about OK with water, but with orange juice, coffee or wine, it was awful, I found the worst was with chocolate…!
Besides the treatment, I learned to sip beverages (preferably with a straw) and swallow with my chin at about 2 inches from my chest.
What kind of treament do you have and since how long?
Maurice.