Start off slow and do a few shorter doses/exposures.
You want to do this a few times a day everyday.
Rushing doing mobility work isn’t a good thing.
You don’t want to set the stage for injury or something to go wrong.
If you are pressed for time at the gym are you able to do mobiilty work at home?
What is your standing position like?
Are you over extended?
Cleaning up how you stand will have a big impact.
Episode 128: The Pelvic Fault and Back Pain
Episode 274: The Standing Athlete
Episode 269: On the Spot MobRx for Tight Hips
I would find time to have someone do a video or set a video camera or your phone camera up.
This could be a key in seeing what is actually going on.