I have hypothyroidism and my pituitary glands hurt all the time. Yesterday=bad all day. Can't even touch the back of my head now. What is wrong?

Doubt pituitary. You have headaches. Hopefully your hypothyroidism is being adequately treated. Why do you think this is from your pituitary? A pituitary headache is relatively unusual, and usually is associated with a relatively large tumor. See your doctor about the cause of your headaches.