Feeling detached from your native language

When I started learning English I ended up switching my entire surrounding with English, right now at work I also use only English, I got to the point that I only use Spanish (my native language) at home and with the few native friends that I have.

For some reason I have now this strange feeling of feeling a bit “awkward” about my NL. My English is not even perfect, my NL is still intact, I have just stopped using it and feels really weird.

Has anyone experienced this feeling? Could someone start “disliking” or feeling foreign to its own native language?