Low Back Pain !

Just got back from the chiro, he said it’s not a SI Joint problem

he said the pain in the low back is because of poor range of motion and tightness between some discs and maybe neck. he said he can free it after 2-3 sessions.

Should I go for it ? I know people dont like chiros’ but for that specific goal of increasing discs ROM, can they help ?

BTW I couldnt find any A.R.T specialists in my area so its down to physical therapy and chiro.