[Prophylaxis]

Hey Nemencine.

I would say you most likely have a 'facet joint arthopathy'.

Basically this means your lumbar joints to the left side of the back are getting 'jammed up'.

Here are the exercises you want to perform to 'open up' the joints.

- but do this stretch lying on the RIGHT side and pulling the left leg over your body - hold for 10secs X 5

Gently bring knees to chest, back and forth

Also as has previously mean mentioned in other threads - do lots of posterior pelvic tilting (as having an anteriorly tilted pelvis can worsen this)

Summary:
Lumbar rotation stretch
Knees to chest
Posterior Pelvic Tilt


Avoid any stretch that brings on your pain, as this often means the joints are being further 'jammed up' .

Let me know how you go!