Hi first off I'm sorry your feeling like this. I went through this for years until recently it got better. Your mind goes a million miles per hour, you can't sleep, your hearts racing, and if your like me it's like your trying to crawl out of your skin or body, like another person is pounding inside you to get out. I spent years through exercise, meditation, and therapy trying to control it until I learned....I can't. I also was diagnosed and refused to take medication thinking I needed self control and it would go away. I'm guessing your a high functioning Bi-Polar like myself, good grades, good self presentation, you read books or articles trying to figure out those feelings and control them. But for me, and I suggest seeing a professional to make sure if you haven't, I've only got better through therapy and medication. The medication I'm on now has stopped the racing thoughts as well as depressive episodesand the pain it causes. But I was scared to take it at first, or admit I was not in control. If someone has diagnosed you, and your feeling like this, medicine and therapy will make it better. It won't cure you but it will help you feel better. I wish you luck.