Certainly, when you read most forums in the 'can anyone help' sections, the majority of the posts seem to involve some problem or other with the nut, or recutting it followed by pages an pages of the thread then devoted to how to do it, what horrendously expensive files folk should buy, that the health of yourself, your family, the local community and mankind as a whole is at risk if you don't cut it right so take it to a trusted and experienced luthier or just bin the guitar and take up knitting.
Anyway, must go.....got a woolly scarf to finish off....