For 2 weeks now I have had a severe pain in my left side and it started with my lower left back hurting and pain going around to front lower left but now the pain is at the lower left front and it hurts to stand,walk or even bend down!it makes me weak and I get nauseated.i can't even lay on my left side because of the pain !it doesn't burn when I urinate. I have had a complete Hyst years ago !I thought maybe I was constapated, so took enemas,stool softer ,etc but pain is no better and now I'm getting worried.what could this be ?