Bill does the coughing bit after taking pills, drinking water, eating, etc. A speech therapist wanted him to have a test done as he was sure a valve in his throat wasn't working correctly - and could cause him to aspirate but Bill refused. During the couple of times the therapist was there Bill had to cough up a big pill which had gone down the 'wrong' tube. Not a pretty sight. I try to get him to take just one at a time but he insists on doing most of them at once - or won't take them. Although he has always loved taking pills - family always joked that there wasn't a pill he didn't like. I have to take D3 - his doctor said he didn't need it - but Bill insisted it be added to his daily pill taking and that was years ago.
I think his dementia started even before 2013. He would always get mad/upset easily but by 2010 it seemed to increase a 100 fold. He would get upset at the weirdest things. Some commercials would drive him up the wall - into swearing, etc., yet he would insist on watching them. And he would get mad at me if I didn't agree how terrible they were (I always tune commercials out). Seemed so strange to ruin an evening (every evening at that point) over a commercial. Bill used to do commercials as well. Would be fun seeing him on TV in one, or seeing him in the Princess cruise brochure. Maybe that is why he has a strong reaction to commercials. At least now with the new med he no longer seems to notice them.

Wishing you and your husband the best.