Nothing worked

I have spent the last two days in hospital with a blockage in the upper bowel which is in turn causing me severe leg muscle pain. Movicol, senna, coloxyl, enemas, nulax, dulose, osmolax, all on top of a hi fibre diet. Nothing. Nada. Zip. Morphine, endone, tramadol for pain. Nothing works for that either. They are doing the mastectomy on Tuesday regardless of whether I have managed to get things working or not. I am very tired and over it, crying at the littlest things. I have tried exercise even though my legs are weak and have given under me a couple times. Also tried heat packs. Water consumption is approximately four litres a day. I will seriously try anything.