I'd say maybe because I've had this happen to me as well and I kinda started noticing it was my brain thinking too far. If you're not certain maybe give a small prayer for the person you're thinking of.
that sounds alot like responsibility ocd, i'd suggest reading a bit about it and seeing if it applies to you ~
That’s something I can relate to, I’ve experienced family members interacting with each other and worrying that they could cause harm. All my life, ever since I was a boy of 8 - 10yrs of age. I would worry about my mum getting hurt, killed or injured. I’d mainly worry about her dying... she came home late from work one night, I was about 8 or 10 yrs old and I became extremely worried/anxious and thought the worst. I thought she may have been knocked down by a speeding motorist. She hadn’t, but mind mind jumped to the worst case scenario. Then when I was in my 20’s I heard that a lady had been knocked down in my local area. I immediately thought it was my mum, I would also worry about my dog, Max... if anything happened to him. So, I guess it is a form of OCD, you fear harm happening to loved ones or them harming each other.