venting

Hi all, just need a vent.
My late period finally came.. day 1 post colonoscopy. So far 2 tramadol, 2 ibuprophen and 1 panadine forte and the pain isnt budging..it's agony. I started my pain killers at 7am. its now 9.08am. What's going to help me?  Im worried I'll accidently overdose just because these tablets are suppost to help and they arn't.. I know I can take so many per day.. but if this isnt helping all in 2 hours...how is any more suppost to help? I have my heat pack laying on the lounge. How can he tell me he doesn't know how my endo could be back so quickly.. even the gateroligist (is that right? the guy who did the colonoscopy) believes it's my endo. I KNOW IT IS..I KNOW ENDO PAIN..IT NEVER GOES AWAY.....
It's times like these I feel so helpless. God please, help.