When unforeseen problems force me to go out despite severe ME/cfs, simple errands can become overwhelming very quickly. I had to go out today, needed to send off some paperwork, but my printer ran out of ink, again! I needed to print off a load of sheets, so I had to take a bus to get that done at one place, then off on another bus to find a post office to send it.
By the time I got to the post office, my legs were not working properly anymore. It was like I was wading through lead or mercury, let's just say Nutella, have to keep things positive!.