Under Perens' definition, open source describes a broad general type of software license that makes source code available to the general public with relaxed or non-existent copyright restrictions.
1 Illnesses such as the flu or colds. Home treatment of your flu and cold symptoms usually will relieve lightheadedness. 2  Vomiting, diarrhea, fevers, and other illnesses that cause dehydration.  Very deep or rapid breathing (hyperventilation).
Dizziness and lightheadedness can be caused by low blood sugar, dehydration, anemia and other causes. If you are experiencing dizziness and lightheadedness, it is time to see the doctor for testing and treatment. Some medications, including some reflux medications can trigger a headache, nausea and lightheadedness.