Hi
@David1234P, just beware that BSLs can drop some 6 plus hours afterwards if one is not careful.
My take on it is that the muscles have used up most of their own fuel stores of muscle glycogen. It makes sense for them to have fuel "tanks' next to them, and the liver as a secondary source via the blood stream if needed.
It seems that the muscles spend some time repairing themselves before making a demand on the 'universal' fuel supply of glucose in the blood stream. This 're-fuelling' can deplete blood glucose levels and lead to hypos. Sometimes I find I can eat more at that 6 hours or later mark and avoid this problem or may have to reduce my insulin dose before this time on days I exercise.
Also lower sugars can happen overnight in my experience and sometimes lead to trouble then.
Best Wishes. In some ways your car being out of action may be one of the best things that could have happened!!