I am the pain queen. I have suffered with back/hip and knee pain and in the shoulders for like 3 years now. I thought once I started the bios it would go, but it didn't. I had MRI and I have 2 mild bulging discs. I've tried it all. I have gone through 4 rounds (about 20 sessions) of physical therapy, then after that made me feel worse I stopped. Then I tried 20 session with a chiro just in the last 2 months and I stopped again b/c no relief. I would try and get back to the gym to move a little and do stretches and I'd get spasms after a few days and stop and do nothing. I changed my mattress to one that is soft for tender points but with some latex and memory foam, and that's not working.
I've bought numerous books on muscles and triggers and I have felt that most of the problems were from trigger knots. Then I found the link that says trigger knots in the muscles can often be caused my low thyroid hormone and sex hormones. And women get diagnosed with fibro more than men, and more often during the peri/meno years. So I believe the hormones should help but so far they haven't. But I think what needs to be done is a good trigger therapist. I have a new guy I'm going to tomorrow that swears he knows all about these triggers and I will need many sessions. So I think having someone work those triggers and also having adequate thyroid hormone and sex hormones will help.
I would suggest you get good thyroid blood work done: antibodies, a sonogram of the gland, free t3 and free t4, cortisol, and vitamin D.
It's very true that low vitamin D can also mess up your muscles. Mine was 25 and I've been taking 4000D3 a day, you need to take D3. Levels close to 100 but not over are the target, but anything near 70 is optimal. It takes awhile to get that level up. Also check your ferritin. If that is low, you get low energy and that affects the muscles too.
Pain things I've tried that failed:
Biofreeze (works for about a few minutes, and pain is still there)
Arnica (did nothing)
Emu oil (zilch)
Bosewellia cream and oral supplement (zilch)
Capsacin (burned me like hell and was so uncomfortable, couldn't tolerate it)
and just about every pain cream in the healthfood and drugstores (zilch)
Zyflamend (nope, but it has things that are good for your body, Tumeric, ginger, etc. in it, but it's expensive)
Osteo bi-flex with boswellia (I still take it with faith for the future of my joints, but pain still here)
Hylauronic acid (nope)
Bromelian 500mg (nope)
Apple cider vinegar (nope)
Aleve (nope)
Advil (nope)
Flexeril (nope, but it helps me to sleep

)
4 glasses of wine and no husband or kid (yes, some of the time)
ice packs while sitting (yes, but then once up and around, nope)
sleeping (yes, i can sleep w/o pain, as long as I'm not standing and walking)
Tens unit (somewhat, but not that effective)
Armour thyroid and bio HRT, so far not helping, but it could be doses are not high enough yet.
So I've tried it all. After getting some trigger point massages and upping my Armour I'm hopeful I can get relief. But I've had this problem now for 3 years so those knots have been there a long time and it will take awhile to get rid of them.
Do you find that if you press in the areas that you have pain, the pain is worse or refers to another spot? Check the Trigger Point book by Janet Travell, or google it online and you will find diagrams with these trigger points. I swear I know that is what I have and nothing will help it until the knots are broken up and the muscle is stretched and strengthened.
Check your thyroid and look into the trigger information. Also get checked at a rheumatologist for lyme, lupus, RA, etc. just to rule all that out.