following on from the other load of b@lls, I would like to add my tuppence.
working nights for many years life just ran its course, on reflection my foreman remarked I was looking tired when he came in at 6am... I had 2 small spots on my neck in the December like a small spot, the following March they were around 6mm diameter. by July after numerous scans, jabs and tests neck and thyroid cancer was diagnosed. its now 2 years since they first appeared, 3 ops ( 14 hours) of surgery, 4 doses of radio iodine later and its still in debate if another op is needed or another dose. other than overdosing on tramadol Im still here. stops you doing your helmet up for a few months!!
any lumps get them checked out
AND FINALLY
make sure you have critical illness and death cover or you will get screwed by your bank like I did, the mortgage protection needs looking at the small print. anything over 12 hours back at work and they stopped paying out.