Ok just spoke with the hospital. Here's what midwife thinks. The lovely vagina is a hollow space... and when I was lying in the water apparently it has filled with seawater, then I have unconciously clenched my pelvic floor muscles or had a BH and woosh the water has come out.

She did talk about a hind water leak and said that it doesn't HAVE to keep leaking but it usually would. SO I have to monitor it all very closely and if anything doesn't seem right I have to call.

I've been taking my temp and its fine, I'm feeling a little warm but I did wash the car in the sun this morning and hang out the washing so I think I got a bit pink then.

Thanks for all your help all of you. Love being able to seek advice here.