Bellyaches are something that we all experience at some point in our lives. However, there are various synonyms that can be used for this term. One of the most common synonyms for bellyaches is stomachache. It refers to the pain or discomfort felt in the abdomen or lower belly. Another synonym for bellyaches is indigestion, which implies the discomfort or pain that arises due to the inability of the digestive system to process food effectively. Other synonyms for this word are cramps, upset stomach, nausea, and bloating. Whatever term you may choose, it is important to remember that bellyaches must not be ignored and must be addressed promptly.