I developed a pretty severe case of tinnitis over the past two years. I was diagnosed with MG a few months ago. Is the tinnitus all that common with MG? It seems like ~20% of posters here are complaining of tinnitus. Is the real percentage greater? Is this a real MG side effect or is it from my invincible days of 'rock and roll' as my GP has proclaimed? He could be right. I did have some fun.