Thanks guys.

I have realised that coke can act as Mestinon.

I had some glasses of coke just before my last emg, the one which was negative

Can this have afected the repetitive emg?

My neurologist want me to try Prednisone since I have got thymic hyperplasia and one positive emg.

I feel much better since mestinon, but it doesnt work every day and sometimes i dont take it and im fine, other days i take it and im not, other days it helps some muscles but not others. Itīs strange.

The point is that I am not sure if this is MG or not so I am scared of prednisone.

Thank you all for your replies.