Given the memory thresholds of the rare few with hyperthymesia, it seems more likely that you hold false memories than that you remember clearly being one year old. Certainly you would be the first person known to have such memories if confirmed.
I've considered that, I'm well aware of how easy is to fabricate memories and think they are real, but I've checked with my parents (without giving them the information, just asking questions), the memories are real. To clarify, I'm not claiming to remember everything about being one year old, just to have a few very clear memories that match with what my parents know happened, the layout of the house etc.