I Have The Problem Of Hard Time Going Poop I

I have the problem of hard time going poop I had my gallbladder taken out about over a year ago and have had dierea after I eat or drink something every sence I have talked to my Dr and he told me its fine and is normal . I was give a striped for cyclobenzaprine 10 mg and ibuprofen 600 for my back on 11/13 and starting on 11/17 I had problem starting.of my poo getting harder to come out and from thanks giveing to today just tiny bits was coming and a water like but to day I toke a shower and bint over I get somethinh and poo just starred coming out so I got on the.potty and nothing but when I got back in tub I when some more