Is it normal to have imaginary friends that feel real?

It's kind of a complicated story and I'm sorry if it doesn't really make sense.
Ever since I was about 14, I've had these imaginary friends that I say live in a different country. There was no particular reason for creating them, I think I just wanted to talk about people in stories even if they didn't really exist (I had issues with compulsive lying but I don't know if these are related) . But over the years they've started to become really real and I often forget that they aren't. Sometimes I'll wake up and just feel like/know that something has happened to one of them. Like one of them actually killed herself a year ago, and I remember waking up and crying because of it. But then there are times where I just have a bad feeling and it's not until a little while longer that I'll kind of come up with something that's happened and incorporate that? I have memories with them in them (such as meeting them and talking to them), even though they obviously never happened. I'm not sure if any of this really makes sense but the only stuff I can find is about young children having imaginary friends, which doesn't really apply to this. It feels a little different to the friends I had as a kid.