What can cause swelling of neck vertebrae?

I woke this morning with a sore neck vertebrae, I know it sounds weird but now I think it’s swollen, its like the third down and it feels massive, it’s the one before you get to your ‘back’, it sits on your shoulders so to speak.
I’m worried it’s a tumor!
Anyone know what can cause this?
I am on my computer all the time… help!