memo to myself and others re chronic illness

I've just been reminded, once again, by a friend's misunderstanding whilst communicating via Messenger, of how much one loses when living with a chronic illness - in my case moderate ME (myalgic encephalomyelitis). 

What they had failed to understand is how impossible it proves / has proved to plan any events ahead. Even a meal out locally, with my beloved, can only be cofirmed at last minute and, even so, is an extremely rare occurrence. I have lost contact with most of those I had considered "friends" prior to succumbing to this illness, almost 15 years ago, and have had to rely, to a large extent on the proverbial mountain coming to me.