Whereas the weight loss was probably the only thing that you have done over the past 3 years that was remotely connected to the low back pain, this serves to demonstrate how people are sucked in by witchdoctors. Fortunately your witchdoctor was a good witchdoctor, did not suck your wallet dry, and gave you rather benign albeit misguided advice which ultimately caused you to lose weight.
There are many witchdoctor therapies in the us such as homeopathic medicine that are used without a shred of proof they work and will unfortunately drain your bank account with voodoo cures. Manipulation therapies which claim to be able to cure asthma and diverticuliitis are also scams. Be smart, use some common sense, and do some research prior to jumping in to alternative and unproven therapies. Ask the following questions:
1. Are there double blind randomized placebo controlled studies demonstrating safety and efficacy?
2. What is the incentive of the person who is advertising such therapies- are they part owner or sole owner of a device or herbal cure they are trying to sell?
3. Is the price reasonable for what is offered? If a person offers to cure disc pain with a single injection for $2,200 and has no human placebo controlled trials to back it up, run the other direction since this is most likely a scam. If you are offered a magnetic mattress for $2,000 from a person selling the mattress but with no placebo studies using the same mattress without the magnets, you may be scammed.
4. Use common sense. If it sounds too good to be true, it probably is a scam. If it doesn't make sense, then ask enough questions to show that the therapy has merit or does not.