Tension headaches occur because of physical or emotional stress placed on the body. Stress, and the fact that when you cry, you don't take in as much oxygen as you would with normally breathing. Your muscles tense and your face clenches. All of this will contribute to headache symptoms. 

So now that you know the educational bullshit... I am here to say that I have one of those ^. Yep and it doesn't feel good at all. But anyway My nap today was alright 2 hours I woke up at around 8 then ate, watched TV, and took a shower. Now its time to go back to sleep so that the headache can go away before tomorrow. 

:( Goodnight.