Dizziness is a general term that can describe a feeling associated with a number of other symptoms including vertigo, light headedness or just a sense of loss of balance. Each of these can be caused by different things.1  Vertigo: Vertigo is feeling a sense of spinning or motion when there is none.izziness is a general term that can describe a feeling associated with a number of other symptoms including vertigo, light headedness or just a sense of loss of balance. Each of these can be caused by different things.
Currently the basic rule is that carry on baggage must be no taller than 22 inches, no wider than 14 inches, and no deeper than 9 inches. In many cases, you'll also have to contend with limits on weight.
For Travel Through April 3, 2017: Personal item (e.g., purse, small backpack, etc.): Dimensions must not exceed 16 x 14 x 12 inches (40 x 35 x 30 cm) including handles and wheels. Carry-On 10 x 18 x 22. Carry-on bag: Maximum of 22 x 18 x10 inches (56 x 46 x 25 cm) including handles and wheels. We may require that a carry-on bag travel as a checked bag if it cannot be safely stowed on a particular flight. Checked bags: Maximum of 62 linear inches (length + width + height; 158 cm) including handles and wheels and maximum of 40 pounds in weight (18.1 kg).