[mareofnight]

I have some problems that I don't have any particular diagnosis for. Is there any way I can find out whether it's worth trying this? Is it a problem for someone to get a transplant when they don't actually need it? (The article writer seemed to think it was a bad thing, but if it really is "as dangerous as changing a baby's diaper", then it doesn't sound any worse than taking unnecessary vitamins.)

(Problems are food intolerances, some cause unusually painful gas, others affect my mind. My doctor has no idea what causes it, and some of them are to really common foods, so staying on my diet is difficult.)

[giarc]

I'd speak with your physician about the possibility of FMT. Your MD can get in touch with these guys http://www.openbiome.org/ that provide low cost samples for transplant ($250).