I also don't have a clue whether I will be strong or weak until it happens. I have learned to be cautious and test out my legs before walking so that I don't hit the floor. I don't get any sensory clue that my muscles are about to quit.

Abby, We are mammals. Mammals are supposed to nap.

Perhaps your cortisol levels are tanking earlier every day. They are at their highest in the morning - which is why they should be tested at that time - and decrease throughout the day. Maybe it's time to see your endo to have a thorough look at everything.

In science, there are a lot of axioms they refer to, such as Occam's Razor or parsimony. Basically, "Keep it simple, stupid." Often the most simple explanation is the right or best one. Of course, they probably weren't referring to MG.

Annie

Alice, exactly...I have lost the ability to navigate! I have no idea how heavy things are as well. I often ask a normal family member to lift something to ask them if it's heavy to see if I'm just weak or if it is really heavy! Or to open a door, etc to see if it's me or the door!