Headaches in Troubleshooting your Whole30 Posted January 21, 2018 On 1/19/2018 at 5:02 AM, Nushi said: Me too! I am on day 6 of whole30 and the awful headache started from yesterday (day 4) it started on the 3rd day but it was slightly. I drink enough water and salt as pre-whole. just added some more vegetable to my daily meals like green squash and red bell pepper. @SugarcubeOD I started eating potatoes with every meal, totally cleared up my headaches. I usually do sweet potatoes with breakfast. I’m on day 19 and I’m happy to report no more headaches!