In three month I lost 12!

Hi! I was 86 kg and in three months I lost 12 kg. I sued to have high cholesterol high uric acid and I had joint pain but one day I saw your video on YouTube and I start following your guidance and eating healthy. I didn’t follow the Keto 100%, because I'm from Pakistan and we are eating lots of grains and wheat, but I feel a big change in my health - everything is normal now but I have one problem whenever I am alone in my room or anywhere my brain start focusing on one thing and that’s give me a headache. I remember I saw video which mentions this problem and gave a solution as well but can’t find that video, please could you send me the link of that video or give advice for this problem please. Thank you so so much .