large fluctuations in BP is known in chronic heavy drinkers and those with other disorders effecting nerves. you should be careful about accuracy of your instrument too and if you are understress while checking BP like excessive cough
or shortness of breath
? all these will affect BP. if you have cough and phlegm then probabily dutoprol
is not best choice , are you a smoker too? conslut your physician and moderate your alcohol, i hope you will be better.
please discuss the problem of swallowing with your physician only .
thanks for sharing with us.