Cae,
Unfortunately no one is immune (so to speak) from Parkinson's disease (PD). It certainly is uncommon at your age, but possible. I would encourage you to see a neurologist ... and a movement disorder specialist (MDS), in particular. An MDS specializes in PD.
Many things can cause tremors. I wouldn't jump to conclusions.
There is no definitive test for PD, but a common evaluation would include: a myriad of blood tests, an MRI, and an EEG (is that the one with probes on your head? that's what I mean). If you get the 'ok' on those, it becomes a clinical diagnosis. If you meet X out of Y symptoms ... PD.
Best of luck,
lizzy4451