hi, I am just wondering if anybody could help, it doesn't matter how much sleep i have I am always tired and have constant headaches and feel sick (but never sick) every day, but I don't know what could be causing this, any helpful answers would be very much appreciated. oh and I was also suffering from chest pains and heart palpitations a few weeks back but have now stopped and haven't had any for about a week now if this could help a diagnosis.