Has anyone ever dealt with a clicking noise in a horses shoulder, right over the point of the elbow.  It sounds and feels like a tendon catching on the point of the elbow.  I have been to 3 different vets, we PRP the area, she has had 2.5 months off, we have ultrasounded and x-rayed, not lame, cannot make her sore or uncomfortable by stretching or putting pressure on it in that area.   No MRI machine in canada can do that high up on a leg.  The Clicking sound got worse after each run in the spring.  

Anyone ever dealt with this issue or know of a good vet that can solve the unknown issues ???