Gosh, I'm sorry you're in so much pain.I can't even begin to imagine what it must be like, but observing my sister and her pain of AVN (avascular necrosis) was just heartbreaking (apparently doctors compare AVN pain to bone cancer pain), so I really feel for people with pains such as these. My sister's hips got so bad that she had to have both her hips replaced...she's only 33 (but had these surgeries about 2 years ago).
Pain management can be (pardon the pun) a pain to figure out, especially when there are so many options that may/may not work. I've always been leery of chiropractors as well, but it wouldn't hurt to try the homeopathic remedies and acupuncture.
Although it's scary, the knee surgery might be something to consider in the future. If it helps you to feel better and lose the pain, it will be worth it.
**hugs**
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