Hello~I am not sure what would cause it, I have had similar with the swallowing, but it isn't because I forgot how, it is just I can't make my "swallow mechanism" work for a second or so, it is scary, but it always passes, for me, I think it is due to my high stress and anxiety and if I think about swallowing, I have to make myself do it, it doesn't happen naturally. Maybe you are stressed and concentrating on those issues, thus, causing your body to go into "manual" drive instead of automatic. If it really concerns you, then talk to your physician, he/she can no doubt probably explain what is going on better than I.