What term describes a fit of nausea or faintness?

The term that describes a fit of nausea or faintness is "qualm." This word is often used to denote feelings of uneasiness, particularly in relation to nausea. It conveys not only a physical sensation but also an emotional aspect of discomfort regarding a situation. While nausea itself refers specifically to the feeling of wanting to vomit, a qualm encompasses a broader scope of discomfort, which can include the sensation of faintness or an unsettling feeling in the stomach.

The other terms, while related, do not precisely match the description. Dizziness typically refers to a feeling of lightheadedness or losing balance, which, while it can accompany nausea, does not inherently involve that feeling. Nausea, as mentioned, focuses directly on the urge to vomit and does not imply faintness. Vertigo specifically relates to the sensation of spinning or dizziness associated with balance issues, which is also distinct from a general feeling of faintness or queasiness.