I Have Very Vivid Dreams

I have very vivid dreams and nightmares. In one of the nightmares last night, my sister and one of my good friends (Tay) and I were like just kind of swimming in this river. At first it was nice but just weird.. Like low key white water rafting without the raft.. Tay was struggling so I told her to just kind of let the water take her and not fight it. There was this woman in her 40s or 50s kinda swimming up next to me and her body like got lifted half way up out of the water and then her face was slammed down into this weird pocket of water and I screamed. Then these fish started like eating parts of the people around us. Like it didn't take long for that woman to be dragged under water and then she was just gone. Somehow I knew the fish ate her. I could feel them gnawing on my legs and I thrashed trying to get away as I screamed in pain and worried about my blood attracting more. I hopped onto Tay's back and kinda balled myself up with my knees to my chest. I was just barely sitting on her tail bone since my sister was on her upper back and Tay was just barely staying above water. Then I could see the fish behind us and we started reaching into our bag on Tay's back (it looked like my emergency bag). It had all of our dirty clothes in it. I thought it was a good idea to try to hit these fish. Turned out they also liked our sweaty clothes and ate those up. So we kept throwing them to distract them. I woke up after we ran out of dirty clothes and the fish started coming after us again.