can you forget sexual abuse?

Is it possible to forget being sexually abused as a child? I remember when I was younger (like 5ish) I would have very intense and extreme "daydreams" (I was too young for them to be any type of fantasy because I didn't even know what sex was) about people being sexually abused/tortured but I don't remember ever having anything done to me. I just don't get how I could've known about stuff like that and become so sexually aware at such a young age without something having sparked it. I remember when I was in kindergarten my mom started taking me to a psychiatrist  because I was having anxiety but I don't remember what sparked it. I also remember I got to a point where I did not want to be around anyone without my mom there because my anxiety and panic attacks were so bad. She would ask me if someone was doing anything inappropriate to me because that's all she could think would be the cause but I told her no. I read an article once I started wondering about my sudden anxiety, fear, and sexuality at such a young age and it said how some people experience traumatic stuff like sexual abuse at a young age and then their mind pushes it to their subconscious because their brain just can't handle it enough to accept it. Is this really a thing? Has anyone else had this happen? I've never talked to anyone much about it because I don't want speculations going around whenever I can't even remember any specific abuse occurring.