i would add i drank orange juice without problem. i don't know the ratio, just said orange/mango blend. i don't think its citrus cuz orange juice is fine. also no problem eating plain orange.
It sounds like you were drinking a juice blend, which is not the same as a hybridized fruit at all. You did not say if it was 10% juice or 100% juice, but it may be that citrus is a problem for you. It is a fairly common allergy.