Is it uncommon to remember pre-verbal cognition? I have a handful of vague memories of how I thought about the world before I could speak. It was very differen

Is it uncommon to remember pre-verbal cognition? I have a handful of vague memories of how I thought about the world before I could speak. It was very different from how I think today. I don't know how much of that difference is due to language versus physical development; I was probably around a year old at the time. These memories are difficult to describe. For instance - my concept of "door" was sort of a combination of the idea of a flat, vertical plane that pivoted from the right side, the idea of grabbing something (like a knob or handle), the idea of pulling toward myself, and a kind of parallax motion where my perspective moved left and the door moved toward me and to the right. Basically it was a partial mental image combined with an action. A noun and a verb. It wasn't a full image, though - I didn't picture a door, but rather was aware that the door existed. I didn't open the door in my mind's eye - I was too young to walk, so I'd obviously never opened a door myself - but awareness that a door was a thing that could be opened. As an adult (I'm 38), I still have brief flashes of non-verbal concepts. I can sorta/kinda "feel" the door concept I described above somehow underlying the thought when I think of a door. The closest parallel I can draw to this kind of cognition is how I understand logic systems today (programming, puzzles, etc.) I have a mental map. It's almost - but not quite - a flow chart. When I'm thinking about how things fit together, I'm moving those things around in my head and even changing their shape to see how they "fit against each other". It all sounds weird when I write it out like this, actually. But it's the best way I can think of to describe it. Is this way of thinking about things unique? Is it some variant of synesthesia that I've not heard of before?