Thank you all for your input. I am a toughie when it comes to injuring myself as I just push through it, this one however has got me it is definitely chronic.
I think I may have initially hyperextended in TG lift and that was the start.
So hard for me to rest it as I am a new studio and I am the only one to do the classes. I try to just demonstrate on the opposite arm where possible.
I like the sound of acupuncture so might give that a try in conjunction with the exercises you girls have suggested.
Do you think this is something I am always going to suffer now??