False memory, traumatic memories, amnesia, etc.

[humbleno1]

Im stuck with a problem of never gaining certainty in terms of - Something in me says something happened, that I dont know at the time is true, or not, its bad very bad, a very bad act, sometimes I think the memory is true, sometimes I dont, sometimes I dont know if its me convincing myself it isnt - there is another person involved, who was very young, who says this never happened, but what if, this person has a traumatic amnesia? the "memory" would be traumatizing. This is an old age debate, Im afraid of knowing the truth and I dont know how to know it either.