In general, sweating is caused by too much heat, even if you're not aware of the heat. This can happen if the bowel moves and so raises the core temperature. Such movement is often accompanied with sweating, and since you only feel the normal temperature on the skin, it is cold sweat. But at the same time your core is hot so you think it's cold, but it will later mix to normal.
Anyway, it points to unusual bowel movement. This can be due to food allergy or, in a milder form, in food intolerances which are quite common. When it comes to sour ingredients, they are often in fruits, so I'll make a shot in the blue and say that you have a food intolerance against some fruits. You can check this hypothesis by trying chemically pure acetic acid to sour your food. If that doesn't result in sweat/hotness then it's probably the fruits.
The Wikipedia points even directly to salicylate in fruits but I think you cannot exclude allergies against essential oils like limonene and such. Plants are really chemistry factories and not all is well that you can get with them.