My wife is experiencing droopy left eye, struggles to lift right leg which effects walking, tired, and just had a seizure that lasted less than 10 seconds. Her neurologist said Bells Palsy 6 months ago but now think Myastenia Gravis as the symptoms are now daily, before they would come and go. She is on Mestonin and it helps but her symptoms don t match MG.
Myasthenia presents with fluctuations in weakness Chat Doctor.  In your case presence of left Ptosis right lower limb weakness and seizure points to some intracranial lesion may be at brain stem. Seizure is not a feature of myasthenia graves. In my opinion a neuroimaging of brain with contrast may be done after proper examination by a physician preferably neurologist. Wish you good health and prompt diagnosis.