Pelvic pain

Patient: Hi there,I have a couple unusual pains that I believe are related and i just want to find out if they are normal. First of i have had stabbing pains on and off in my pelvis area either side where the top of the legs meet the front of the viagina.I also have a slight pain and tenderness to the tail bone only when i stand up or sit down.. not whilst i am sitting but on the action of sitting and standing up. I have just had my first ever bout of thrush which was due to antibiotics given to me due to ear infection probems.I was just wondering if anything obvious comes to mind?Regards,Donna