HiKhoura27,
I have had migraines for 56 years. I have always had "migraine fog" prodromal, postdromal and during migraines. I used to call it "the stupids," as that is how it made me feel. This has worsened as I aged, so allow me to make some suggestions as to things I have done to make life with fog easier.
Develop habits, such as ALWAYS putting your keys (or purse, phone etc) in the same place. I organize my purse, kitchen etc along the same lines, and rigorous attention to this helps you to navigate your life. I do the same with actions. For example, I always lock the door when I walk in, even if it is for just a few minutes. Therefore it is unlikely I will leave it unlocked when I am in a fog.
I also act on things that occur to me as soon as they do. This might mean writing a post-it note, writing it in the notes or reminder section of my phone, or just stopping everything and doing it while I remember it.
Develop a sense of resigned and good humored acceptance that you will lose or forget things. Stop trying to find something you lost (where is thing I was just holding) and try to go on without it. I say to myself, it will show up in time, and it usually does. To this end I have multiples of tools or items I use. For example, I have 2 pairs of glasses by my bed (One on either side), and another pair in the living room. I use an organizer for my daily pills and if it is not where it is supposed to be, I can go to the main box which is in a permanent place which it NEVER leaves. I buy staples one ahead..e.g., a bottle of ketchup in the fridge and another on the shelf, I always have access to a backup for everything I need. I keep a huge calendar on the wall and also one on my iPad and iPhone. All this helps keep the stress down.
Admit to friends and family what your problems are and try to keep them informed so they can help. This is very hard, and it makes me feel dependent which I HATE. But those around you need to know when they should look out for you. When I am in a fog I might call out that I am letting the cat in the garage, so my husband can check to be sure the cat got back out and the door was closed. He reminds me about my pills, or,draws my attention to the sounds my phone is making so I check what is needed (oh yes, take the clothes out of the dryer).
Also, be honest with friends. As my headaches have expanded to18-20 days a month (+ pro & postdromal time), I have had to admit I cannot take on some tasks. That I am not reliable any longer. When people make a date with me, I remind them I'm not sure I'll be there. I get them to call on the day and confirm. I accepted it doesn't make sense to buy expensive tickets for events in the future, as I might not be Comfortable going out in public.
Well, this is enough for now, I hope you won't find yourself as far down this path as I have, but this has helped me survive.