My mom of age nearing 40 has undergone an open surgery for the removal of her uterus about a year ago. I knew she has to undergo some physical and mental stress and changes... not in detail. But she has frequent head ache particularly between the eyes and the ears on both sides of her head.This makes her stressed out and tired and she is not able to get up for more than 5 to 6 hours.. I just wanna know if this is due to her surgery or any other cause.If so or not I would like to have a remedy..