Yes, it's especially tough walking first thing in the morning, for sure! I have finally accepted I need a cane, so am using one now. I'm glad this symptom isn't in my head. Thank you for sharing.

Muscle soreness in the quads after getting out of bed is variable, sometimes worse than others, can discern no pattern, but yes, definitely wobbly. Sometimes use cane for a while if wobble really bad after getting out of bed in morning. I try not to use cane at home b/c I feel I always need to work on balance, and if wobble is really bad I will hold on to things as I walk (even though I know I am not supposed to do that). I always use cane at night if I have to get up to go to the bathroom. If I am away from home I always use a cane for safety and stability. I haven't measured how the weather affects it--I just know it is always there and always bad.