Not sure where I should post.

My 5, almost 6, year old son is a normal, happy, healthy kid. He is bilingual (French Canadian).

Since he was about 2 and could speak well, he always had a little "language" of his own that he called "Shpikov" (I am spelling it the way I hear it being spoken to me, by my little guy)

It was adorable. His little made up words were adorable. They brought so much happiness to my heart because I felt he had great imagination.

But, these words were consistent. Same words, same intonation, same phonology for each of these "invented" parts of his vocabulary... I thought it was strange, but, he's a smart kid.

(That's difficult to do, even if you're a smart kid)

He hasn't spoken "shpikov" in well over a year.

Today we were coming home from the park. We had what seemed like normal 5 year old/mom conversation, until I decided to build him up a little, tell him he's beautiful, hilarious, smart... because he knows TWO languages.

He stops and tells me with great authority that he knows and is fluent in THREE languages. That I forgot about "shpikov" (again, my version of the spelling according to what I hear)

The language he hasn't entertained in well over a year. That he started speaking again, today... fluently, with the same intonation and phonology as before.

He tells me in great detail (again, over a year since he last told me) that shpikov is his "real" language. I have to take a lot of planes to get to his home, but it's real and shpikov is what everyone speaks.

I've been searching for years to find this "shpikov" language, and would appreciate if anyone could point me in the right direction. I came across one language today (which gave me and my eldest son goosebumps) but, I can't be 100%

Not sure if I can post the link to what it sounds like, but will of allowed.

Posting here to ask if anyone else has had a similar experience, if they haven't heard of the "shpikov" language?

Is there somewhere else I can ask?

Thanks in advance.