Antique haunted glass buoy

This is a glass float that was found on a beach in Japan back in the 50s, I worked in home healthcare for years and a lady I worked for gave this to me before she passed away. Her and her husband actually picked it up on one of their trips to Japan. This is one of the first items I’ve ever had that’s been haunted. I had a medium tell me when she held it she could see a ship sinking with all men on board not surviving. She said two men tried to use a net with these attached to stay afloat but eventually drowned, this is one that was on the net they were using. What she told me is very accurate to the activity I experience with this item. I’ve heard voices that doesn’t sound like English, I’ve had nightmares of drowning that are reoccurring, at times I get sick to my stomach for no reason and I’ve seen this ball roll across the room by itself. I cannot guarantee you will experience any of this but I’ve had several people in my home when it’s present and have the same experiences.