What Causes Memory Loss?

Hi! I’m a 27 year old female who has been having memory issues over the last two years. The most frustrating part about it is sometimes I will lose something almost as soon as I pick it up. For example, not once, but twice now (both this year - several months apart) I have come home in the morning and then shortIy after went to leave again and couldn’t find my keys and had absolutely no memory of what I may have done with them. I couldn’t even remember taking them out of the ignition. In both cases, I left my car door unlocked (which is extremely odd because I NEVER do that) and neither set of keys were ever seen again. I’ve even gone as far as to remove the entire seats frOm my car to look for them. I also used magnets in hard to reach areas where metal parts didn’t prevent me from doing so. One last brief example is what happened just before I decided to come in here and ask for something me insight and is a perfect example of the kinds of things that happen nearly every day! I picked up the saw and the multimeter to move out of the backyard and into the garage. Just a few steps into the garage, I put the saw on the work bench. Then, I walked the last couple of Steps over to where I needed to use the mutimeter, sat down, and realized it was gone! I remember picking it up. I remember settling the saw down. But, I have absolutely no memory of doing anything else with the multimeter after I picked it up! I still can’t find it! I literally only walked a few steps in total so there’s only so many places it could be. It’s not even like the garage is that messy! When I do find the multimeter, I’m hoping to psychoanalyze the heck out of the reason why I set it where I set it so that maybe it will give me some clues as to where my keys my be lol. Thanks in advance for your time!