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.
You should check with your airline first, but most domestic airlines permit a carry-on piece of luggage that is 45 linear (total) inches. A common sized bag for carry-on luggage is 22x 14x 9. Most airlines have a carry-on weight limit of 40 pounds. International airlines may have different restrictions for carry-on luggage. Again, it is always best to check with your airline first to get their exact requirements. Airlines enforce all size and weight limits much more strictly now than in the past. Bags are weighed at check-in and many airlines have placed bag sizers at their gates.