Since birth, we use an orthopedic pillow. Even though I didn't ask my …

Since birth, we use an orthopedic pillow. Even though I didn't ask my pediatrician about it, now I read online that only by their recommendations is it possible, but in fact, it might even be harmful. We're two months old, we've been using one for a half year, and now I can't calm down. What do you think? Who else uses them? I will definitely ask my pediatrician about this.