Help, I am really concerned that I'm losing hair..... Male, 21 years old

[ThatGuy1997]

I know that male pattern baldness is from the temples, but what the heck is happening here?
Now keep in mind that I have shorter hair now and I've had it lined up, but nothing was shaved off beside the temples. At the temples it is starting to grow back as thick as always, no issue there, but right to the left and to the right of the middle of my hairline, there are like two lines where it seems to be really thinning and it was not like that before. I'm really stressing out guys. Is this just my hairline maturing or what is it? The first pic here is before, so around 8 months ago, and the 2nd picture is from now.

https://imgur.com/a/U7i8S3M

[rclark]

I know that male pattern baldness is from the temples, but what the heck is happening here?
Now keep in mind that I have shorter hair now and I've had it lined up, but nothing was shaved off beside the temples. At the temples it is starting to grow back as thick as always, no issue there, but right to the left and to the right of the middle of my hairline, there are like two lines where it seems to be really thinning and it was not like that before. I'm really stressing out guys. Is this just my hairline maturing or what is it? The first pic here is before, so around 8 months ago, and the 2nd picture is from now.
https://imgur.com/a/U7i8S3M

I'm rclark. Good to meet you. Have I seen your name before?

Your hairline is definitely in good shape. I don't think you have any thinning baldness
at all.

[ThatGuy1997]

I'm rclark. Good to meet you. Have I seen your name before?

Your hairline is definitely in good shape. I don't think you have any thinning baldness
at all.

Thanks for the answer. No, you presumably have not, although my quite basic username has likely been used on other websites I guess. That was not me, lol.