After some initial relief from Chronic Fatigue Syndrome I'm getting awful symptoms now. The most scary are palpitations and I haven't had these for a few years. Now they're back and they're hard to ignore. They seem to come on if I over exert myself - walk too fast or climb stairs too quickly. Doing my best to ignore them but it's like having a big flag waived in front of your face saying 'Slow down!'.