After 4 nights in the hospital and umteen tests (all negative), hubby is home. His heart rate dropped to 30, causing him to lose consciousness. It turns out his medication was the culprit. He had fatigue, dizziness, a rash, and a couple other symptoms from it. However, none of us connected those to his medication (beta blocker).
That was too scary. He is at home now, resting, and reading the newest Michael Collins book.
Thank you for your well wishes. I appreciate it.