I think that when we get a lot on our minds we tend to do that. It happens to me too. But I get what is called fibrofog. That is because I have fibromyalgia, which also makes you really tired. So I can sympathize with you on both issues.
Try meditation at night, it will clear your mind and help you to focus on one thing at a time. You need to try to live in the moment. I guess they call it being in the NOW. That helps a lot when it comes to memory.
There is also a supplement called ginko biloba that is suppose to improve memory. It might be worth looking into.
Best wishes for a wonderful day.
Moderator-Depression and fibromyalgia
fibromyalgia, Chronic fatigue, depression,allergies