My memory is worse than my grandpa with Alzheimer's?

This past month my memory has been so bad, I don't know if I'm extremely distracted or what but like at work (I'm a hostess) and someone will tell me there name and I put it in the system and two seconds later I ask them again but I look down and realize I already took their name even though I don't remember, or like if I answer the phone and the line is for a manager, and then I answer another line right after, I have to like grab a pen really fast and write it down otherwise by the time I hang up that second line I'll forget the first line was for the manager. Its happened so many times with people who call and say they're here to pick up their order (we bring it to their car) I forget to tell someone and they wait for 30 min. Its so bad people think I'm not listening to them, I am I just can't remember what you just told me. Or like at home I seriously have like 10 reminders on my phone for one day and I keep pressing snooze until it's actually done otherwise I'll forget if I turn it off and then do it. It won't get done. My mom has even noticed. She gets mad. She thinks I'm going crazy, because I also randomly say things that don't make sense or are completely off topic. I used to have great memory I don't know what's happening, I'm turning 19 in two months.
My memory is worse than my grandpa with Alzheimer's?
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