I suffer from extreme fatigue and exhaustion and am a year and some change out of treatment and surgery. I have good days and bad however find that having an active day or exercise puts me down for a few days afterwards. I'll lay in bed all day and really not get any sleep yet be awake for days on end sometimes. I have circulation issues as well a few weeks ago it landed me in the ER...I looked down and my hands were blue, the next thing I knew I was passing out and feeling like an idiot coming to in the ER...luckily my primary dr was working that day.