Feel Bloated, Stomach ache?
Other reason may be due to food reheating as re-heating starchy food changes its molecular structure and this cannot be digested in the small intestine but passes into the large intestine (the bacteria that helps break it down produces gas) hence the bloating.
When chewing gum, more air is swallowed, which increases the risk of bloating. Also eating food quickly or large amounts in one bite means more air is swallowed and and increases the risk of bloating.
Taking of antibiotics, or an attack of food poisoning, can cause bad bacteria to proliferate. Which means there is more likelihood of sensitivity to foods that ferment in the gut, causing bloating and gas.
Stress can also be be factor in bloating and cramps.