Round floated above me I couldn’t speak or move until it was gone

I was young. In the 70s we had to go to the laundromat with my mom. My sister, her friend and me went along to help. We were outside playing. I look to the sky and see this round object coming from the east floating toward us. I try to talk and ask my sister if she sees it but I can’t move. I can’t talk. I watch it go over head and go towards the west. There was a park behind the laundry parking area. I watched it fly out of site and disappeared in to the west. When I could talk I asked them if they saw that. They said they didn’t . Later in life I asked my sister if she saw it or saw me paralyzed not able to speak. She said she didn’t see it. The object was round and had lights . I could see the lights it was so close. I have never forgotten it and how I wasn’t able to get anyone else’s attention. I was frozen but the people I have asked if they saw me frozen they say no. I feel like they took me from the parking lot for a few seconds or mentally incapacitated me somehow.