I haven't experience this in months but im feeling tingling all over, chills, insomnia and narcolepsy. I'm not sure what happened but im scared. I had a mammogram and Stress Echo on Saturday, the Cardiologist from the stress echo said that my heart is good and strong but right now, i feel extremely weak. Any suggestions. I am so afraid. I keep falling asleep as i type but I also keep waking up out of my sleep. Im so scared.Help!!!