Can you have diaphragm spasms without having the hiccups?

Yes, it is possible to experience diaphragm spasms without having hiccups. Diaphragm spasms can occur due to various factors, such as stress, irritation, or muscle fatigue, and may not always result in the characteristic sound and reflexive action associated with hiccups. While hiccups are a specific type of involuntary contraction, other forms of diaphragm spasms can manifest differently and may not be noticeable as hiccups.