My ability to concentrate is currently somewhat erratic; this has been an intermittently recurring problem during the past six or seven years. Exhaustion affects one mentally as well as physically but, it also appears to be unrelated to any exertion, or lack of same, on my part. Having had considerable periods of remission, from the more disabling aspects of my illness, has resulted in an increased level of frustration when stamina levels take a dive; this sense of frustration, in it's turn, seems to militate further against my reserves of concentration.
Quite remarkably, alongside this frustration I'm feeling reasonably content with my situation, when I'm able to hold back on tetchiness! I feel blessed in having such a loving and caring family, a comfortable home, good food and drink; what more could I wish for? Although the question's rhetorical, it would be wonderful if I could reduce my bed-rest requirement without feeling shattered mid-way through the remaining hours of (what I would like to be) active life.