white beam of light and cylindrical object

I want to report an incident that occurred when I was about 6 years old, which would have been approximately 1964.
 I have never forgotten it. I was a small child living with my great grandmother in a small town in Oklahoma, very small town. I guess it had a population then of less than 2,000.
Lindsay, Oklahoma is where I was born and raised and where the following events occurred.
I stayed with her a lot. My mother lived nearby and had 4 other children younger than me. I was very close with my great grandmother and was her favorite.
Because I had no way of describing what happened at the time I recounted the events to my great grandmother the next morning over breakfast as that I had been lifted in the air last night by a white light to what my mind at the time thought was a giant silver tube of toothpaste. (the shape was the only thing I could come up with that my little mind could describe). I tried to describe how scary it was. I don’t remember any discussion about it again.
It wasn’t until I was an adult and something caused me to think of it again that I realized what had happened was an UFO abduction.
I will describe exactly what I remember.
I was in bed with my great grandmother which is where I always slept. I awoke to find myself floating up in the air inside a white beam of light. I was outside because I looked down to see my great grandmother’s house below me. I recall being terrified to the nth degree. I can’t even begin to explain how scared I was.
I looked up to see that I was being drawn through the air to a very large, cylindrical shiny silver object with a dark opening in it…to which I was being lifted towards. It seemed that a being was standing near the opening and watching me floating up to it.
I have absolutely no recollection of what occurred inside the UFO. I woke up again back inside my great grandmother’s house.
A disturbing thing to me now which at the time I didn’t relate properly and couldn’t explain properly is that the day of my return I complained to my mother and great grandmother that my genital area was very sore. I complained enough that they examined the area to see if something was wrong. I was questioned as to what made me so sore and I know this sounds weird but because I was a small child and had no remembrance of being inside the UFO and anything that could have happened all that my mind could come up with was that a blade of grass had been inserted into me. They were perplexed and asked me repeatedly what had happened and I gave the same explanation again. It’s all that I knew to say….for some reason I believed that something had been inserted and knew that it was something similar to a blade of grass. I had no idea how the blade of grass came to enter me. It’s all I knew to say.
I am 50 years old now and still remember these events vividly. I believe that it was an UFO abduction. When I became an adult and began to read and learn of other abductions I realized that I had experienced this too. As a child I couldn’t explain it because I had never heard of UFOs  and had no vocabulary or knowledge to explain it.
I have related the experience a couple of times to family members but they think I must have dreamed it. I can understand that because it sounds so weird that I don’t want to believe it either.
I just wanted to tell my story to someone and have it documented.
Witness indicates that date of incident is approximate.  PD