In reply to Timmd:
Started for me at about 13. That's what a childhood of falling off bikes, jumping off roofs, and falling out of trees does for you. (Yes. We were allowed to do those things in the 60's. Not everybody who can remember them wasn't there!)
I had a father who was bit busted up from a similarly eventful childhood promptly followed by contributions from Adolf Hitler, Irgun Zvai Leumi, and then the British construction industry. I realised that if I didn't want to be in the same state in my 40s and beyond then I needed to put some effort in to mitigate the effects of having an interesting life.
The first thing you need to understand is as follows.
"I'm sorry, 'herbal medicine', "Oh, herbal medicine's been around for thousands of years!" Indeed it has, and then we tested it all, and the stuff that worked became 'medicine'. And the rest of it is just a nice bowl of soup and some potpourri, so knock yourselves out." Dara O'Briain
Find a decent Chartered Physiotherapist in your local area and maybe worth a one hour session to discover if any of your current issues can be helped with a bit of physio. Not wasted if they can't as for most UKCers the future is full of excitement ... and pain. And establishing a relationship with a properly trained Chartered professional will help to keep you away from the alternative quacks who are out there.
Get a book on isometric exercises. That's those ones where you exercise without moving (but it's still tiring!). Often good for building strength around troublesome joints to help protect them from more damage.
Make yourself aware of the problems associated with NSAID like stomach problems and anaemia. Why? Because, like many UKCers, and other associated nutters, you'll end up on the High Brufen Diet at some stage. You need to understand how to get the benefits without the extra health damage.
All this stuff about avoiding red meat, more omega-3, fruit and veg, and so on: is it all b0110cks or will it help? It's not going to hurt is it and it's cheaper than Dominos or MacDonalds.
(60 and out there doing it. Per Ardua.)