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).
High blood pressure, often asymptomatic, can cause headaches, shortness of breath, nosebleeds, and anxiety. An insulin reaction is the result of low blood sugar and causes anxiety, hunger, shaking, dizziness, and more. Anemia of chronic disease (ACD) can cause fatigue, pale skin, weakness, dizziness, headache and more. Anemia , a lack of red blood cells, can cause fatigue, pale skin and gums, brittle nails, irritability, and more. Carbon monoxide poisoning can be fatal, symptoms include headache, dizziness, nausea, and vomiting. Cryptococcosis is a lung disease causing a wide range of digestive, respiratory and cardiovascular symptoms. Aseptic meningitis, or viral meningitis, can cause fever, headaches, neck pain, nausea, and more.