Hi! I m a 30 yrs old, female. I ve been having a constant headache for more than a week, green stools, almost a white out dizziness when going from the floor to standing, also once in awhile it feels like im on an elevator when im not? I m drinking lots of water and have taken otc pills for my head. Also have not been eating any more green veg than normal? I did get a promotion to a more stressful job about 2 and a half weeks ago. I m not sure that has anything to do with it.