That is what the neuro called my weakness.I have never fallen over but when I am tired I cannot lift my legs up off the bed, I can't walk on tiptoes or heels, my legs are just wobbly. Weakness is in the arms jaw oesophagus and ptosis.I was put on Imuran but when I saw another neuro he thinks it is fibro so I haqve come off the Imuran. He saqid mky pattern of weakness does not fit MG.