I have been getting pain in the left side just below the second rib in the back?

i been getting pain in the left side just below the second rib in the back for 4 months plus the pain is worse after food i have had ct scan i have blood in my stools there try to give me a colonoscopy but it felt like it was going to come out my side where i get the pain i have had it for 7 year the pain use to go away after i had big bleed but since December it has not gone the pain make me past out iam waiting for another colonoscopy to see if they can get further in the colon please help