Yes, I do, was diagnosed by my rheumatologist years ago. I was also very active, did ballet and other dance from 4, gymnastics, can ride, did lots of rock climbing etc... Had been told I had hypermobile joints before then though (physio, osteopath etc...).
I get more of a merge of pain though as I've also got rheumatoid arthritis and fibromyalgia and other issues like lumbar lordosis.
I have all sorts of pillows and cushions to try and make me as comfortable as possible. The soft beanbag like travel cushions (oblong ones) are good and I've got a round the neck one too.
I love V pillows and have some wedges too and a maternity pillow. I have a memory foam topper and a memory foam pillow and find putting it between my knees can help me get a bit more comfortable with my hips when I'm trying to sleep.
I tend to roll off things from lying down rather than trying to get straight up, like off the sofa and out of bed.
I loved acupuncture which I had done at physio, limited relief but any relief is great and I used to feel so relaxed right after. I also have very regular massages, usually after I've finished work for the week when I feel broken and it means I've got a longer respite to rest with the benefit. They are great at avoiding aggravating my joints/fibro triggers too.
I agree with the just because you can thing, I have to be preventative as much as possible though a lot more to do with RA/fibro flares.
Occupational Health were great with some relaxation techniques and other things. I love the ragdoll technique.
I've been having hydrotherapy recently and that has been fantastic though it is quite limited what I can do and would be important not to overdo things in hypermobility and exercising in water can be very deceptive so good to have guidance from a physio.
I think knowing your personal limitations is important, what the limits of your joint movements should be and how to stay within that and not aggravate them while remaining mobile (I can't move too much but if I don't move I freeze up). Gentle fluid controlled moments (think gentle and graceful, good start if you've done ballet and anything like yoga/pilates), good posture where possible etc... If you are prone to pain issues in certain places, good posture is vital as much as possible, especially when sitting say at a computer.
Podiatry can be good if there are any feet related problems. One of my arches is collapsing and I get a lot of issues such as plantar fasciitis, more connected to the RA in my case though I think.
Meds wise, I have a lot though mainly for RA/fibro etc... but they help with other issues.
I have chronic fatigue, routine and planning is key, helps me keep functioning sometimes almost on auto-pilot to keep going when I need to. I also have a lot of rest, I've had to sacrifice a lot but it's not really optional for me, if I don't rest properly things become a nightmare.
I also drink a lot of coffee! :)