Can anyone advise on treatments for chronic/worsening knee pain?

I have Ehler's Danlos Disease type 3 (most likely... but I could also have the vascular type or a cross-over). I am 33 years old and haven't been seen for this since I was a Navy brat at the age of 15 or so.
In short, I am very flexible ("double-jointed") and I hyper-extend my knees a lot (I look knot-kneed AND bow-legged lol)
I "wore" a knee brace to help keep me from hyper-extending way back when but more often than not, I hid my brace in my locker at school.
Now I'm paying for it.
When ever I stand up and stretch and left knee "pops" resulting in excruciating pain. For several minutes, I cannot stand on it.

Other than loosing weight (I'm at 115 and trying to get down to at least 105 mostly for the sake of my knee- I know I am on the average to thin side at a height of 5'5") what else can I do?
I live in the country so there aren't any Dr's who know much about this.

How about pain management? Any suggestions, tips or sites?

Many thanks,
~eisha

Many thanks for all of the suggestions and well wishes.
I'll make an appointment with my general practicioner (sp) and see if I can get a referral.
In the meantime I'll try some of what ya'll wrote here :)

Poor Darling. I have osteo-arthritis and that is painful enough. I can even begin to think what you are going through.

A combination of natural medications that I have started a month or more ago is glucosamine and green lipped mussel. I take them in separate tablets and I am shocked that they work so incredibly well.

I have tried everything the dr has given me and have been going to naturopaths for years but these ACTUALLY WORK.
I can walk normally. All of a sudden one day when walking thru the shopping centre I realised I wasn't limping I was so stoked!!!

However I have run out and the pain is back. I don't think one course is enough so I will get some more and see how I go.
I heartily recommend you take them sis.
One word of warning tho. DO NOT USE IF ALLERGIC TO SHELLFISH!!!!

Cheers. I hope you get some relief soon.

physiotherapy a kind of yoga treatment can solve. when lubricating liquid at movable joints looses power, this pain starts specially to the aged. By giving movements to the knee in all directions frequently will gradually reduce pain. But needs patience and regular exercise can reduce weight too. Standing upside down and giving movements to knees can bring fast relief.

Do not go for any medicine advised by any body. You, have to find some time and visit some good Orthopedic surgeon and have your knee checked up properly, otherwise it will become more severe and difficult to manage after 40.
You can try yoga as suggested by "mano_t" but with care.

sounds like U blew out some cartilage, get an MRI