I started getting forgetful at 45-46 ,My Doctor put it down to stress ,I occasionally walk into the kitchen and forget why i’m there type thing …The worst one , i was actually stood at a cash point and completely forgot my pin number ,I had used it for three years …It never came back until the next day, And that’s when i went to the doctors and was told its stress …Its also an aging thing in my opinion .
I would pop along to the doctors though,You need to do a few tests .i did some written tests and had bloods done .
Good luck pal.