As above, ask u r physio about back strengthening exersizes (core work) and try to adopt a correct seatin postion if u have a desk job, also try to get out of ure seat even if for a few mins at a time, u may have 2 re learn how to change ure posture which take it from me isn’t as easy as It sounds, if u can do these and keep it up u may improve quite a lot, ( until u get lazy as it’s no longer giving u hassle and fall be into bad ways)
best of luck