I can t stop swallowing. I have a sore throat and a cough that just developed yesterday, and I woke up in the middle of the night unable to stop swallowing. It s like there s a muscle spasm every few seconds that forces me to swallow even when there is nothing there to swallow. I end up swallowing nothing/air, which is really starting to hurt. I took an antihistamine yesterday a little bit before bed, and after some research, it looks like that might be part of the problem. Eating and drinking doesn t help. I can breathe normally. What should I do, other than just letting the antihistamine work its way out of my system?