A good rule of thumb, and something I learned while at medical school is that if something wakes you or interferes with your sleep; especially a headache, but w

A good rule of thumb, and something I learned while at medical school is that if something wakes you or interferes with your sleep; especially a headache, but would be applicable for anything else such as a cough, or pain somewhere in general; it would be in your best interest to go see a doctor about it.