This is a great thread. Yes time of day and temperature would be important for me. I still recall December first when it was 42 degrees, cold wind but sunny so I went for a walk. I had not started the attempt at tanning again which gets me hot and takes me backwards, weaker. I felt that day something in my body that is wonderful and rare....Strength!!!!!!!!!!!! It just proves my point that under day to day of the usual esp summer there is improvement only getting worse even if I tried to walk , exercise because of what heat does to me. But cold weather to me feels maybe like what one feels after getting IVIG tho yet that is only an assumption.

Annie59