For fibromyalgia:
As far as pain medications:
Toradol does work very well but is only safe for short term use.
Toradol IM causes just as much GI upset as the
Toradol PO. There are other
NSAIDs to consider though such as
Celebrex,
Mobic, or
Ansaid (which actually boasts antipyretic activities). These
NSAIDs are much more effective then
Diclofenac and would be worth a try. If
Lyrica is helping I would definately continue and just find a safe way to treat breakthrough pain. Muscle relaxants may be an option to consider for this I'd recommend
Flexeril which also helps with anxiety and insomnia.
SNRIs like
Savella could help by increasing Serotonin and Norepinephrine levels but take time to take full effect. As far as narcotic pain meds
Percocet,
Darvocet, or
Vicodin.
Oxytrex is still in investigation stages and may interfere with other meds you are on.
Remoxy might have more information but is still relatively new.
Demerol is not for the use of chronic pain causes a buildup of toxic metabolites (It is also highly addictive with dangerous side effects) For GI discomfort from medication you could premed with
Reglan or
Phenergan. I would suggest also trying homeopathic methods. Mint tea helps with GI discomfort and inflammation. I find it very beneficial to exercise low impact for about 30min a day. Acupuncture can reduce pain and inflammation even promote healing. I would suggest having your blood pH checked, normal blood pH is tightly regulated and should be between 7.35 and 7.45.
For back pain: I would strongly recommend physical therapy exercises to strengthen the supporting muscles.
For osteoarthritis: Not sure what you are using for the knee but I would suggest sodium hyaluronate injection. It protects, cushions, and assists in absorbing mechanical stress and provides a protective buffer for tissues.
The list of allergies seems extensive. A true allergic reaction to medication occurs when the immune system is activated in response to a drug. Vomiting is not an allergic reaction and can be avoided by taking a premed antiemetic.
A Pain Management clinic could be a very good option for you as they monitor your therapy and most do try alternative treatments.

I do want to say that the suggestion to try
Cesamet or
Marinol would not be beneficial to you at all. These meds are for Cancer and Aids patients who suffer from nausea and vomiting and loss of appetite. Asking for these meds would
definitely not be appropriate.
Good Luck with finding the right treatment regimen for you. (Be careful!

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