I just did a bit of a google search and i have almost every symptom of SPD and i mentioned them all at my antenatal appointments and everytime i saw an OB and not one of them explained to me what it was or offered me any physio. Even when pregnant with my DD.

Feeling like the hip is out of place or has to pop into place before walking
That is something i have almost all the time, since my horse riding accident especially which i have complained about since i was 17.

Hmm, will ask for a referral at my check up.