Have had a clinical diagnosis of MG with ptosis,some breathing difficulty n sm swallowing difficulty n very long standing fatigue.All blood tests however are negative. Neuro is very experienced n sure of his clinical diagnosis. Hv been advised to start mestinon 60 /3 times a day. Benefitted within 3 days but could not tolerate mestinon. Now Bn asked to add prednisolone 20 mg. confused... pls assist. Thanks