a follow up to my original post...can anyone help?
I have sitting pain, my ischial tuberosities feel like I am sitting on stones. So far exercises havent helped and lyrica medication no benefit. Wikipedia reference-linkMRI is clear and a diagnostic injection into hamstring attachment at the ischial tuberosity did not relieve the pain. When examined by a physiotherapist in the crook lying position I had a great deal of pain when he pressed into the anterior surface of the ischium. This was unchanged by hamstring contraction but it increased considerably (a surge of pain) with resisted adduction.
The physio did not know what the significance of this was if any but he speculated that perhaps the problem is with the attachment of the adductor magnus to the ischial tuberosity rather than the hamstring.
I have asked the physio if he will consult with colleagues for me but I would very much like any views from this forum - you are very helpful to a lot of struggling patients!