Doctor, I’ve been experiencing the following symptoms: 1. My heart beats rapidly and also throat carotid pulse beating rapidly.  2. I get goosebumps on my left arm.  3. I feel tingling and twitching in the veins/nerves of my left arm, neck, shoulder, back, and sometimes my cheek and eyebrow. 4. When I wake up after lying down, it feels like something is moving from the veins in my shoulder toward my chest, like a worm running through the veins.  Whar is this? Can you please tell and give some advise?,