What is Leg systoms

I was diagnosed with my Myasinthla Gravis about a month ago. My symptoms were trouble, swallowing problems breathing slurred talk. droopy eyelid and crooked smile. My daughter thought I was having a stroke but later diagnosed with myasthenia gravis. I didn’t have any leg problems or arm problems, but I wondered if this could still occur now. What does it feel like and how will I know? I do have slight slight hand tremors. I am a 76 year-old female and was curious about what the outcomes might be. Does this disease progress through time? I am just beginning to learn about this disease thank you for your help.