Hello Scuby,
I am only 28 and found out in March I have CS and a couple of other things in my neck. I only found out after a gym injury and then being injured a year after by an Osteopath, which prompted MRI and then this diagnosis.
I was literally told nothing at first either, everything I learnt was off the internet. It's good to google your condition and read as much as you can - within the space of a few weeks I knew the different logistics of the neck and where CS could lead etc etc.
One word of warning - although the internet is a good source of information, it can also scare the life out of you. When I read accounts on here and other websites, I was sick and ill with worry as some who were sevre were in our age group. However you have to remember they are the worse cases and naturally they are going to come on these websites, so don't think all young people with CS are that bad.
If I was you, I would keep on at your GP - there's no way I would leave it like that. I have pushed my GP, Rheumatologists and then the Neurosurgesons polietly but reguarly. If your GP is no good, get a new one, you are too young to be left with nothing.
If you have not had an MRI, make sure you push for one to check if you have other stuff in your neck. You may then be referred to a neursurgeon, to discuss whether physiotherapy may ease symptoms, or a pain clinic to or they may suggest surgery (unlikely, unless your nerves are being damaged).
I had the pain in my neck, shoulder and forearm originally but it's all gone now - I am just left with stiffness and soreness nearly every day. But I have been pro-active: I have purchased a \"memory foam\" pillow from Argos, it was about £30 and that helps reduce stifness when sleeping on it. I have purchased Chondroitin, Glucosamine and MSM (all half price at Holland & Barret) plus I am taking my OMEGA 3,6,9 tablet (from Holland & Barrett) also.
There's no guarantee these supplements will work for your neck - maybe your knees and back but if you can afford them, get them, as they dont harm. Make sure you are sitting properly too as bad posture is a killer on the neck.
With regards to your lifting, yes of course it will make it worse, especially if it is heavy. If you are in pain, naturally you may lift more awkwardly too and this may cause other symptoms in your back as a result. You may need to consider a job change if your employers will not allow you to stop lifting.
Just make sure every day you are gently stretching and moving your head around - research it on the internet or at least wait until you see a physiotherapist to work it out for you.
Good luck