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.
Carry-On Size and Weight. Most airlines will allow one carry-on bag along with one personal item. Maximum size for most airlines is 45 linear inches, including length plus width plus height. The maximum weight is 40 pounds or 18 kg. If your luggage is larger, it should be checked in, since no oversize luggage or package can be stowed aboard, according to the FAA.