1 Illnesses such as the flu or colds. 2  Home treatment of your flu and cold symptoms usually will relieve lightheadedness. 3  Vomiting, diarrhea, fevers, and other illnesses that cause dehydration. 4  Very deep or rapid breathing (hyperventilation). 5  Anxiety and stress. 6  The use of tobacco, alcohol, or illegal drugs.
Economical in the use or appropriation of resources; not wasteful or lavish; wise in the expenditure or application of force, materials, time, etc .; characterized by frugality; sparing; economical; saving; as, a frugal housekeeper; frugal of time. I oft admire.
The above definition about frivolity fits this carefree, not serious, with no purpose in life, foolish beggar, exactly. One day the business man had to send a report in a hurry by someone. Remembering that all his servants were busy, the rich man turned to the beggar at the gate.