Losing my memory

I am 28 years old and I think I am losing my memory slowly. It started with small things like recipes I have always made. I thought maybe I am just stressed and I would look up the recipes again or ask my mom how to make them. It got worse slowly. I started zoning out during conversations, I would realize I didn’t hear anything the person was saying because I just blanked for a minute. I am at a point right now that I will forget what I am talking about in a conversation. Just today I asked my sister if she has to go into work tomorrow and she told me no it’s Saturday. To which I responded “it’s already Saturday?” After about an hour of talking to her I ask her again if she has to go into work tomorrow and she tells me I already asked her. So I said “I did? I don’t remember what did You say?” And she told me again and I respond “oh shoot it’s Saturday already” and she says you said that as well.

Is this normal forgetting or not normal? Also some argument happened and someone asked me what so and so person said and I don’t remember even though I was there and it was a big issue. I just barely remember it and it had happened a week before.