Of course you can live happily being intolerant. It is a chore, and brings with it many moments of pain and agony, even despair (because the fructose is in almost everything), but the body gets used to everything, and if you're depressed, you have to do is change the chip in your mind. Don't let the intolerance you eat and you win!!! Practical advice personal:
1-do Not consider a disease. (Many people do that, and therefore, in themselves, are sick. Just victimising and exaggerating.)
2-Cheer up, it is something that has no cure.
3-Think of it as a personal test. You have to pass to teach what a strong person you are!
4-do Not obsess, go to the doctor ALREADY.
5-be aware of the power of your mind. I Domínala, and don't let it get in the way depressive!