I think I might have mumps.

[Jenbot]

My jaw and neck under one ear is sore and has now swollen up in a lump. It hurts to open my mouth and it hurts if I move my head over in that direction. Hurts to chew or swallow... Just thought it could be mumps.

I'm feeling really worried now as I went to a party a couple of days ago when I just felt like there was something very mildly wrong and perhaps I was starting with a sore throat but maybe I'd fight it off.
There were loads of babies and kids there. And someone else could have been pregnant for all I know.
I would have stayed at home.

[nickytwotimes]

It could be any number of virally things or even dental.
Don't worry too much. I think mumps is more likely to affect both sides?

[BumperliciousNeedsToSleep]

Try not to worry Jenbot, hopefully it's not mumps, but if you are worried see your GP.