I’ve been there. Reasons for this might be different depending on who you are. For me, I’d been hurt by the ones that I loved, and subconsciously put up a wall to protect myself so I was “prepared” in case I would get hurt again. On the flipside I also couldn’t be my most authentic self, so I felt a lot more distanced when being with friends and family. For me, a lot of talking, therapy, and books helped me tremendously, but I’m still on a journey.
So yes, it’s normal, and it can get better.
I tried cognitive behavioural therapy which helped with a bunch of other stuff, but didn’t help me get to the root of my core challenges. I’m with one now which does the following (according to her website):
Theoretically, I am grounded in the psychodynamic tradition and the neuroaffective understanding of attachment and emotional development.
I realized the books I’ve read and got a lot out of may only exist in Danish: “Drop opdragelsen” and “derfor forelsker du dig aldrig i den forkerte”