Why is my memory so foggy all of a sudden?

I (17) have been having this weird brain fog recently and I don’t know what caused it or what to do about it. I have not had any head injuries. My memory has never been the best anyways, but recently it’s gotten worse and I can’t remember simple short term things, for example

• put clothes in the washing machine
• forget to run the wash and walk away

Or,

• lose headphones at home
• cannot for the life of me recall where I saw them last

I’ll forget simple details in the same conversation. Someone could tell me their name and halfway through talking with them I’ll blank on it completely, multiple times.

How can I fix this? What’s wrong?