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.
International flights always allow carry-on luggage, but each airline has its own restrictions as to quantity, size and weight. Some international carry-on policies restrict bag weights to 11 lbs. or less, while domestic flights rarely have a weight limit.