Do you experience spasms? How is swallowing difficult? My suggestion would be to abstain from gbl consumption until you have an idea what is going on. Hope this thread provides that info for you, but I have to admit I do not even have a clue as to what is going on as far as your difficult swallowing. This seems the province of an ear, node & thought specialist, but most of us have to access specialists through our general practitioner who may well know what is going on with your difficulties anyways.
How long has this been ongoing?
Pills should always be swallowed with water, dry swallowing pills can work for the moment but often causes serious problems over time. Probably not the problem here but was worth mentioning.