Hi

Thank you for the interest shown.

She is scheduled to have X-rays taken soon so will be able to comment on that soon.

It is truly spontaneous-no specific movement or action that elicits this response.

No flat feet.
No problems with the infrapatellar fat pad/tendon.
Resisted quads not a problem.

It literally forms a small haematoma as in blue discolouartion under the skin over the proximal tibia(not tuberosity).

What worries me is that the whole tibia has increased sensitivity on palpation.

I will keep you updated if I have more answers.