I have high blood pressure and SVT, taking Nadolol 40 mg once a day. Have had migraines for over a week, can hear my heart beating in my ears (usually at night), and when I lay down at night, my heart races and I get pain in my head or ears worse than earlier in the day. I was taking Excedrin every 4 hrs. since last Friday but tried to stop this weekend because I now have diareah from it. Took some today at 5. Headache was made worse by sun. Took blood pressure at 6 and it was 168/108. Took again at 9, same. Took a Nadolol. Just laid down, felt worse, got up, took bp again, 168/110. Suggestions?