It's tricky, because there are a lot of thinks that can cause those symptoms.
But as a chronic stress / AF researcher / recoverer, both muscle loss and frequent urination can be caused by chronic stress.
High Cortisol --> Collagen and protein breakdown --- > Muscle loss , eye floaters. (do you have eye floaters too? that could be a hint that it is cortisol related.)
High Cortisol also reduces ADH (anti diuretic hormone). If it reduces ADH.....it increases urine flow.
Increased Epinephrine also increases urine flow.
" Infusion of epinephrine also produced a transient increase in urine flow "
So....stress can lead to both muscle loss and increased urination. Fluids went right through me for years