He told me to start by stretching my glutes hamstrings quads hip flexors and mobilising my t spine.

Yeah he reset my pelvis.

I havent addressed the lumbar spine, i take it the video link will help that? am in work so can view the link until i get home.

If not what can i do to addressed the lumbar spine

I started some movement stuff with a coach last night, one of the things he noticed, was when moving in the over head press movment my traps activate far quicker than they should.