Constipation and I go way back. We have been lifelong companions though not friends. I can confidently say that after decades, I now have the upper-hand and rarely fall into the “strained” relationship. OK, pardon the pun. If you have been living with bouts of constipation as well as tension headaches or migraine, you want to know- can constipation cause headaches OR is it the reverse- does being prone to headache or migraine episodes cause constipation. As a registered dietitian diagnosed with migraine, I have spent quite a bit of time in this inquiry.