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).
Migraines are a common type of headache that can cause severe pain, aura or flashes in vision, and tingling. Sporotrichosis is a fungal infection that can cause painless bumps on the fingers, hands, and arms. Anemia of chronic disease (ACD) can cause fatigue, pale skin, weakness, dizziness, headache and more.