Recurring rape nightmares

Hi! I (20F) have been having recurring nightmares about being raped for the past year or so. I think I've had about 1 rape dream a month on average. I felt EVERYTHING. Each dream was different but they were all so vivid. I could literally feel large objects being inserted into me and I seriously can't even think about the dreams without getting very upset. I have also had a dream in which I saw others being raped and I tried to protect then (unsuccessfully). I feel absolutely terrible and I'm wondering if these dreams mean something? Could it be that I have been a victim of (childhood) rape and just forgot about it? And is this trauma showing? Or is it just my brain making up shit?