I find the idea of being tiny sexually appealing?

For as long as I can remember, I've been fascinated with the idea of being shrunk and since I hit puberty I've found the idea sexually arousing. I often imagined myself (and still do) in situations where I am around the size of a mouse and involved in various scenarios with people around me (for a brief period, my sibling became my fantastical tormentor, something that both shamed me and intrigued me). Is it uncommon to think in this way? Should I restrict my private fantasies to purely 'average height' concerns?