I am just starting this journey with feeling huge weights holding my thigh muscles and upper arm muscles down, trouble catching my breath when I bend over or get into bed, having trouble swallowing my own saliva and choking on food, and drooping eyelids. However, they did the blood test looking for the acetylcholine receptor antibody (AChR), and it came back negative. I don't know what that means from here. Has anyone else had this scenario? What happened from here... because I still have all of those symptoms...) Thanks for any guidance here. I am a little stressed, nervous, and frustrated.