Post Fundoplication bowelmovements And other pains

So I had my fundoplication on Tuesday it's now friday and I haven't opened my bowels as of yet only been having liquid diet soups s
Smoothies cups of juice tea and water

So how long does it take before people usually go do people suffer with constipation after this op I've been prescribes some codeine but holding off taking it as it has given me constipation in the past although I have a prescription laxative to combat this

Also last night after lying down I got up to go for a pee and felt
The most intense pain in my lower bowels as if something was bubbling and burning in there as soon as I lay back down it subsided any ideas on this

I also still have some shoulder pain especially when I burp I feel this shoulder pain it's similar to the pain from gas is this normal it's been 3 days should that gas not of subsided the docs told me it should go within 24 hours

Hey thanks Denise I thought as much I know I should probably walk more but I'm happiest when I'm asleep lol