Breathing requires diaphragm expansion and contraction....controlled by muscles. We don't really think that muscles aid the diaphragm, our gastrointestinal track, our heart (a muscle too) - - but it's all part of the deal!

When first dx'd, my neuro told me that MG weakness is greater closer to and within the trunk of the body. I thought that was strange since I was complaining about my arm getting weak. But after they did some strength tests...it was quite obvious the maximum weakness was proximal. I had been making adjustments (without realizing it) to compensate. (an example would be using my arms to aid my departure from a sitting position!)

When I start to breath shallowly, I know it's either time for a pill....or time to quit whatever I'm doing....or both!! There are some folks here who don't get the 'shallow' warning...and can get into some dangerous situations pretty quickly.