crying can cause headache. if your upset and you cry, your under stress and it could cause you a headache.
i was just talking about my son's dead beat dad and i had a headache.
i had migraine headaches for 10 years. my doctor prescribed imetrex and aspirin. i would lay in bed and curle in a ball and pray to God. i was sensitive to light, noise, movement on the bed, my head and eye was pounding.
years later when i was out of a relationship and unemployed my migraine headaches went away.