exotic asian fruits . I would really love too due to the health benefits.

I've tried durian vomited
Ive tried mangosteen diahorrea/vomiting/gas
Ive tried perssimons and got a huge headache
Ive tried custard apple same thing

Is this because my body is not used to these fruits?

I think that it's not the fruit per se, but their quality that causes the issues mentioned. I used to love durians, but because I could not get a fresh one, so I used to buy the frozen variety (a whole frozen durian). Then, one day, Luke brought home some frozen ones, without the skin, in plastic bags. I had a few and ... vomited! I've been off durians ever since, still feeling reluctant today.

I've tried custard apples and persimmons, and their quality pretty much depends on where they were grown, how far they travelled, how they were transported. I've tried some amazing tropical fruit near Byron Bay, and some really yucky ones in Tasmania. I've had more luck with the yummy ones closer to where they are grown.

Gosia

I think they can also treat some of the fruit with sprays when they come from overseas and other states - this might be part of your problem too.

Yes it was in the morning when i only eat fruit. I eat lots of fruit in the morning. I dont know what it is but even when i eat bok choy or chinese cabbage kind of gives me the same smelling burps and defication. I know they are good for you just dont know why. Is it the manure they use, i just cant put my finger on it. I read that they have lots of calcium  and the fruit has extra health giving properties which is why i want to eat them.

Could be thanks!

have you had it fresh in thailand though?...dont knock til you devour it,,,sheesh its so damn good!