I have myasthenia and one day i'm ok and am able to cut an onion, the other day i don't have strenght to hold the onion and finally I d'ont have psychic energy to look at an onion. Then, after one day comes the other, and the strenght comes and goes, and people don't understand what is happening, and one day I'm sad because i can't walk and read, and other day, although I can walk and read, i'm sad because i'm sad, and depression and myasthenia have some similar signs, and when someone is having a myasthenic crisis it's not good to be stressed or depressed and someone is stressed because can't deal with all this. help...