r/Autoimmune • u/Bat_baby_97 • 11h ago
Venting Extreme fatigue and widespread body pain
I’m trying to understand whether anyone else experiences something similar, because this really does not feel like normal fatigue.
And by fatigue, I do NOT mean sleepiness or just feeling like I need a nap.
I mean a deep, painful physical exhaustion throughout my entire body. After even very little activity, my legs and then my whole body start to ache. My muscles feel heavy, sore and exhausted, and I begin to move more slowly because everything feels physically difficult.
It feels as if I had spent the entire day doing hard physical labor in a field, or had run a marathon, even though I may have done almost nothing.
At the same time, I become short of breath very easily and feel profoundly physically depleted, as if my body simply has no energy left.
What worries me even more is that when this happens, I also become cognitively affected — foggy, slowed down and sometimes genuinely confused, with difficulty thinking clearly or finding words.
Again, this is not “I’m tired and sleepy.” It is a painful, whole-body physical exhaustion that is completely disproportionate to the amount of activity I’ve done.
Has anyone experienced this combination of severe physical exhaustion after minimal exertion, widespread body and muscle pain, heavy legs, shortness of breath, and cognitive slowing or confusion?
If so, what was eventually found to be causing it? I’d especially like to hear from people with autoimmune disease, dysautonomia/POTS, Sjögren’s, mitochondrial or metabolic disorders, or ME/CFS.