I often get it but am managing it as I didn't get a lot of help from my GP.
This helped me but may not help you so please bear that in mind.
I finally came to the conclusion that it seemed to be digestive related. I changed my diet radically 3 years ago and cut out wheat/ gluten.
I got a bad bout after eating ice cream so dairy went too.
I addressed the constipation I was occasionally getting which often triggered an attack.
Trapped wind also seemed to be a problem . So colpermin, bicarbonate of soda helped. I took probiotics daily and digestive enzymes.
8 weeks ago I cut out sugar.
I have regular back massages at my osteopaths to rule out any tightness in my back.
I started the day ith a cup of warm water with lemon juice.
A drop of peppermint oil in hot water helps too.
Keeping regular helps. I take vegetables with most meals. I drink nettle tea. If you live near a tiger store they do a brilliant ginger one.
I make my own kefir and sauerkraut. Google Donna Schwenk.
I take supplements every day.
I had a colonoscopy. All fine. I also gave up pain killers two years ago. I felt they were gumming up the works. That has really helped. I know if I have a pain then I need to address it and not mask it.
The pain I get is excruciating and I know I live a pretty tough regime but believe me it's so much better than THAT pain.
This may have nothing to do with your pain but it's taken me years and I mean years to get to this point of understanding.
So, if I can help you circumvent years of pain and frustration then I hope this helps.
I haven't cured it but I'm finally on top of it. It's taken at least twenty years.