Talking wears me out! Yep even a gobby chattering like me has a limit on conversation now. Evidently I start to loose the thread and start talking rubbish, no change there then.
Fatigue is not like feeling tired it is exhaustion not only with a capital E but bells and knobs on. I just have to stop and sleep.
So when you see someone struggling to cope spare a thought what they are going through before you judge what you think they should or shouldn't be able to do.