Hi V.,
let me think, 7 months old... well, when my daughter was 7 months old, I was concerned that I had permanent brain damage or was an early case of alzheimer.
I used to have a good memory, as a matter of fact, I was known for that at work. Now, if I dont write it down, it's gone !
On the other hand, what did I have to manage before ? work responsibilities ? Piece of cake compared to being a full time mom (24/7, not 40 hours a week!)
I dont think I would have been able to pack a diaper bag for an outing or change a diaper in less than 2 minutes. Now I can ! Try to list all the things you have to think of now when they would not even have crossed your mind before, and then think of all the things you take care of now that you did not even have to worry about before. You'll see it adds up quickly to a HUGE list of things to do and think about. Your brain is constantly busy.
Taking care of a child is a LOT of work, it's overwhelming at times. Things got better for me as I got better organized (I felt less pressure to clean/tidy up/do this/do that) and it helped me feel more like myself (or as close as I can get to it !).
If you feel that you could organize things more efficiently, take the time to think it through, it has definitely helped me. I still dont know about my brain but now at least I have found a few workarounds (like Cara, I keep stuff in the car, just in case...)
I hope this helps
A.