Thanks for the messages.
I got a call back from one of the dieticians this morning.
She assured me everything I was going through was normal, and that they in fact had to do the milk diet themselves so they know exactly what we are going through.
She also suggested peppermint cordial/ tea to relive the bloatedness or even a pro-biotic which does not count as part of allowance. Also said I could use oxo cubes or bouillion to add different tastes/flavours
It's also re-assuring that others are having to pee all the time lol, thought was just me.
I also was very surprised today when I went to Boots to get weighed, Ive lost 17lbs since last Friday