Thanks for your support, everyone.
I've suspected it was PD for nearly a year and a half but got fobbed off by doctors who treated me for anxiety (to be fair, I do suffer from anxiety too but I knew it wasn't just that).
The neurologist I saw yesterday said I was very young for PD (which is one of the reasons he thinks it's atypical). I'm 53 and I know many on this forum are in their fifties too so is he wrong? Or is it that this forum is more likely to be used by people under, say, 60?