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.
I've had an ongoing cough for a year now. My throat always feels itchy like there's dust in the throat and it makes me cough. When I feel the sensation coming on, the only relieve I get is if I drink water. My cough is also of a white/clear phlegm and it leaves me breathless afterwards.Its affecting my work and sleep at night.'ve had an ongoing cough for a year now. My throat always feels itchy like there's dust in the throat and it makes me cough. When I feel the sensation coming on, the only relieve I get is if I drink water. My cough is also of a white/clear phlegm and it leaves me breathless afterwards.