I've been having a lot of prickling in my hands, feet, arms and legs as well, which has me worried about lymphoma. But that could also just be nerves.
I don't know if I've had cysts like this before - I know I have one right under my eyebrow, though. (Never went to a doctor for it because it's not something I'm worried about and I'd be too afraid to have it drained or removed as it's so close to my eye.)
And yeah, we would all be so much happier if we didn't know all we did, I think. Sigh!