myasthenia gravis
"Double seronegative MG with only ocular symptoms for going on three years -- slight ptosis and (typically torsional) diplopia during flare ups.    Edrophonium test was very positive;  EMG negative.  Mestinon induces absolutely no detectable change for me -- which seems odd if the edrophonium test was positive.   Stress levels and possibly pollen levels tend to exacerbate symptoms.  Symptoms can be held at bay with 5mg prednisone every third to fourth day   heavy exercise regimen (35-45 miles running per week)   diet low in wheat but high veggies and protein.   Asymptomatic periods have stretched up to 9 months."