I suffered from serious short attention span and it started to affect my job. I convinced my doctor to prescribe me ritalin abd boom i started meetimg my deadlines. But once my dose ran out i had to visit the doctor again and that's when I realised modafinil was available otc in my country. I never abused and was using it only when my work suffered seriously. For months I didnt have any problem and the 'no side effects' of this wonder drug was too good for me. But a few months later i started getting serious rashes and blisters in my mouth, it took me a while to nail it to modafinil. I have stopped it since and the rashes have never appeared again but then my work statred to suffer again. I went into some real psycological issues too. But after much reflection i decided to quit my job and try a different field. And it made me realize a very simple lesson, which i knew as a child, there is no real prosthetic for passion. I just love what i do now and am able to do well at my job too.