Brief history....
Hip pain upon sitting or moving in certain ways. Got worse. Started giving out when climbing stairs or standing from sitting. When it 'goes' I can't walk properly on it and it is painful. Easily fixed by sitting and getting up again, but gives pain and awkwardness in many occasions daily now, so definitely something going on.
GP 2 years ago - blood tests and xrays. All clear. Go away.
GP 6 months ago when it has worsened - no idea. Will refer you to the physio dept.
Physio 3 months ago - exercise to do - makes some of it better, but also makes some of it worse.
Physio this week - no idea. It could be bursitis, it could be scar tissue, it could be something else.
They are writing a letter and refering my back to the GP....who had no idea the first time and refered me to the Physio in desperation because I wouldn't go away and kept politely bothering them. In theory the physio said they may now refer me to the Muscular/Skeletal dept, whoever they are.