Had x-ray, ecg, bloodwork, and blood pressure many times. Whole body feels like it beats with me heart when I lay down. Test came back ok. Ideas?

Cardiac awareness. Sounds like your heart has checked out and is okay. Your symptoms are called "cardiac awareness. " like when you stub your toe - it's all you can feel for days because it's on your mind. You need distraction. Try soft music at bedtime. If not possible, read till you're exhausted before turning off the light. Do not lie left side down which amplifies the normal heart beat. Be well.