Blood in poop & underwear

Hello everyone, I’m female. 25 years old. 2 days ago, I pooped hard round stools and felt a little pain since it’s hard. Then yesterday, I also pooped, but the stool is mixed with hard & soft stool, while pooping, my anus stings a little, then I was shocked when I saw a fresh blood at the end of the poop. Then today, I pooped but I had a loose stool, no blood I think. But then, my anus still hurts then after a few hours, I’m about to pee but I saw a blood on my underwear.

I’m anxious and nervous. 😭 I think it still has little blood now. What do you think is this? 😭 Have you experienced this?