I am a little over 3 years post surgery with a mechanical valve. All has generally been great. However, I have been working a ridiculous amount of hours lately and barely sleeping. Yesterday, I had a migraine with aura and last night after drive home 4 hours from a business trip I think I had afib. It was about 3 hours after I arrived home. I was just siting. Suddenly my heart was racing like crazy and skipping beats. It only lasted a few minutes. I think this is a signal I need to rest. This morning, after yet another night of 4-5 hrs sleep, I took my blood pressure and it was 147/70. Last week at my annual physical it was totally normal. My inr has been low lately - 1.7 last week and 2 this week. Plan to call my cardio today but has anyone else experienced this afib issue due to lack of sleep? Scared the heck out of me.