Abdomen and Pelvic pain. Support this.

I am experiencing sharp pain in my right abdomen area and pelvic area. Sometimes the pain does not allow me to walk even. The pain gets relieved a bit when I empty my bowels but returns if I do a lot of movement and have food. Sometimes I can feel hardness in my right abdomen wall. I also have occasional rectal bleeding when I pass motion. The pain also aggravates when I am stressed. I have PCOS and had my right ovary and tube removed last year through laproscopic surgery; I am not sure if the pain is due to this but gynec scans have not showed anything. I suspect IBS, IDS, maybe even Crohns but I am not sure. I need advise on how I can find the right speciaist, how I can help him/her quickly diagnose my problem and what scans I might to do to support this.