I wrecked my back pulling hemi heads off, with the engine in the cars,.. went thru pyshio,, meds, rest etc, nuthin helped much,, ...
Coupla yrs later, my wife and I went to the Virgin Isles to visit in-laws,, he introduced me to his best friend there,, he was a Chiropractor/Osteopath, whose training in Vietnam was putting dis-jointed soldiers back together,.. he worked on me for about 5 mins on the living room floor,, and I started laughing.. my wife thought he was tickling me,, but in fact, I was laughing cuz the pain had stopped.. Thank-you Dr. Tony Corrigan..(now teaching in England I believe)..
He worked on me a few times while there,, then explained how to get a Chiro at home to "adjust" me..
One of my customers was a Chiro I'd put nitrous on his Vette,, when my back went out again,, it took 2 visits,, and only one visit everytime after that.. Been pain free about 30 yrs.. ( never pulled another Hemi head,, without help...)..
I would never have gone to a "bone-cruncher " at home,, and Doctors often don't recognize them (Chiropractors).. So don't be shy about trying one.. imho..
hope it helps..