Hi sumosuma thank you for reaching out. I hear how frustrating it feels to be up, feeling well and going about your day, only to be taken down by migraine after a few hours. While there are many who experience migraine symptoms upon first waking, I am not as familiar with hearing about a consistent pattern of migraine onset a few hours after waking. I hope if others in the community experience something similar they will share with you! You are not alone experiencing cognitive impairment with migraine. Many in the community express feeling a reduction in mental capacity while enduring migraine symptoms. If you haven't discussed these consistent patterns with your doctor, I would encourage you to do so to gain her/his perspective. Please keep us posted on how you are managing. Wishing you a gentle day. ~Allyson (Migraine.com team)