Hi yar, Welcome to Healing Well forum we are glad to have you join us here. I am sorry you havent had any responses to your post. Sometimes when a lot of people start to post other ones will get bumped to the bottom of the forum and most people dont see them.
Anyhow, I do have a slow heart rate...diagnosed as Bradycardia; I had to have a pacemaker implant done 3 years ago as my HR got down into the 20's and wouldnt come up, even with medication. I was 31 yrs old at the time. It was all quite sudden, I didnt know I had a problem with my heart at all. I just had been feeling really sluggish and flu like symptoms for a few months before.
Have you been treated for your Hypertension? I wouldn't worry too much about the medication lowering your HR at night more than it is because beta blockers are meant to correct abnormal heart rhythms. That is what would be the primary cause for your slow heart rates. Here is an article on Beta-Blockers from WebMD. I hope it helps.