I have the following symptoms: deep sharp pain in left buttock while standing or stepping with my left leg-really painful deep ache at the same time throughout pelvis cavity, vagina, anus feel of need to evacuate bowels...some but not much outcome no bleeding present first started four days ago sitting down with good posture alleviates pain longer I stand symptoms return tightening buttock and pelvic muscles with straight tuck and suck posture allows some control of pain i had left hip pain previous to this due to some back issues...phys. therapy helped that have some hemorrhoids but have not had any problems had a very clean colonoscopy 2 years ago I am female, 68, caucasian Ht. 5 2 , 155# thoughts are: hernia?, twisted colon?, hmrds?, blowout of colon side? (pain is on left side) Please share your thoughts or questions. Thank you. sl