8 Silent Signs Stress is Making You Sick. What To Do About It.

Headaches are a fairly common sign of stress, but the frequency and severity of your headache pain can be a hidden sign that stress is making you sicker than you know. If you have a headache more often than once every few months and it is not related to drinking too much alcohol, it may be a symptom that you are handling stress poorly.
https://www.beliefnet.com/wellness/health/emotional-health/stress/8-signs-of-stress-sickness.aspx