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.
To ensure a smooth boarding experience, it's important to make sure that these items will fit into the overhead bin or under the seat in front of you. The maximum dimensions for a carry-on bag are 9 inches x 14 inches x 22 inches (22 cm x 35 cm x 56 cm), including handles and wheels. The maximum dimensions for your personal item, such as a shoulder bag, backpack, laptop bag or other small item, are 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm). To determine if a bag will fit onboard, bag sizers will be available in the airport lobby.