I know this probably sounds stupid but I'm seriouse! I think I have a memory problem is that possible?

So I have this problem where I am very forgetful but I want to know is there something out there for your brain or memory? I know it sounds stupid but ever since I had my son 5 years ago I have a bad problem forgeting things and remembering is this possible if I'm only 26? If I don't make myself a note I won't remember and basically I already got in trouble at work I put files together and I swear I was missing 2 doents and when my boss looked it over they were there, he said I was slipping but I honestly do not remember seeing them and putting them in there. Also part of my job is to process an order and I have to set my alarm on my phone so I can remember to put it in everyday at 2 diffrent times or I'll forget and I don't know why. I do plan on going to see the doctor for this but I want to know if this is actually a real problem or is it all mental? Do those vitamins they sell for memory really work? Seriouse answers only as this is starting to affect my life and work.