I'm not sure if this is the right place, so this can be moved if need be.
I'm evidently hypermobile in most of my joints.  I'm not so much double jointed, but I can easily hyper-extend everything.  If I put my arm out straight, the forearm and hand are well below the elbow.  If I lock my knees, my legs bow inwards.  I can bend forwards and put my head and shoulders between my legs while standing.  I can go over into a backbend/bridge without using my knees if I have a spot (I'm pretty sure I could do it without, I'm just scared of hurting myself/falling). 
I've always known I was really flexible, I just never realized that I could easily hurt myself in the long-run until a few days ago.  I don't have any problems at the moment, other than a shoulder that occasionally likes to slip out of joint (I can easily get it back in myself, it just hurts like hell for a few minutes and then I'm good to go again.  Most people don't even notice anything being wrong.).  My feet/ankles also enjoy protesting if I run a lot, no matter how cushioned my shoes are.

Are their any precautions I should be taking other than the normal ones?

I can see it now....  Parkortion - all the rage in birthday (and bachelor party?? ) entertainment!  Backwards gate vaults for all! 

From what I've read, doctors will tell you no high-impact activities.  No running, gymnastics, anything where there is any extra pressure on your joints.  They tell you to take up walking (blech) or swimming (which I evidently should have done, as I have the same build-type as Michael Phelps).  I've found a lot of stuff about how to work around it on gymnastics boards (esp. in regards to stretching and doing upper body stuff), but I was wondering if there was anything I should be watching for with other stuff.