10 Possible Reasons For Headaches

2. Constipation


Sitting on the toilet straining to finish up your business can cause a headache very similar to the one just mentioned. The straining can cause the pressure in those same blood vessels around the brain, and that can kind of tug a bit on areas where pain-producing nerves are present. The best answer for this is to address the underlying cause and find a good solution for constipation. More fiber in the diet would be a good start.