Usually it's chalked up to dizziness, but dizziness is a broad term that can mean different things to different people. It's a common complaint, but it can be serious. Vertigo . The feeling of motion when there is no motion, such as you spinning or your environment spinning.
Shrimp definition, any of several small, long-tailed, chiefly marine crustaceans of the decapod suborder Natania, certain species of which are used as food. See more. Dictionary.com
The meaning puny person in English is attested from late 14c.; an especially puny one might be a shrimplet (1680s). shrimp (v.) fish for shrimp, 1801 (implied in shrimping), from shrimp (n.).