It could be said that mathematics is the language of physics. That is another way of better understanding what is physics. Numerical values, units of measurement, and similar concepts are all mathematical in nature, and are used to describe physical quantities in the most accurate and precise manner.
In brief: Cough headache. There are a couple of possibilities. Coughing can raise the pressure inside your head, which can cause pain sometimes. There is also a poorly-understood entity called the primary cough headache,  that is associated with coughing, straining, laughing, crying, etc.
Hi am having a dry cough with itching and mucus but when i cough it does not come up. 3. Get help from a doctor now âº. Cough: Could be having airway irritation from post nasal drip which often causes cough-nonproductive and productive. Could be developing a respiratory tract infection and just not test able to expectorate/cough anything up.