I had a surgery with a stent fitted in my kidney on Wednesday last week, I have been taking oxybutynin and codeine because I can't cope without. But now I haven't been able to go for a poo since Tuesday; it's stuck in my bum, I have tried Vaseline, glycerin suppository and dulcoease, the pain and struggle and just general uncomfortableness is so bad I have the shakes, I've been on the toilet for almost an hour and it's making me feel sick. What else can I do?!