Showers have been exhausting for me ever since I got ME/CFS, I wouldn't even contemplate taking a shower in the AM. I've never understood why such a seemingly innocuous activity could cause such fatigue. Adrienne Delwho takes a stab at it in her latest post. Her first / fourth answers seem most likely to me - temperature changes and nerve sensitivity but I am not entirely convinced.
- Heightened Nerve Response: Especially in fibromyalgia, the pressure of the water hitting your skin can get your nerves riled up. It might not hurt while you're in there, but the stimulation on our over-reactive nerves could put them closer to the point of sending erroneous pain signals and making you hurt all over.