Hello. Has anyone had urinary retention a while after taking Co codamol? This lasts until the next which makes my weight go higher. I also take diuretics, amitriptyline 20mg, gabapentin 30mg and Levothyroxine but this only happens when I take the Co codamol and is very unpleasant. My GP has changed my diuretics yesterday. My tummy is quite swollen despite losing a lot of weight.