seashells congratulations! Sounds like you had a marathon time of it. Welcome Imogen, another great name choice.
Dilly The heavy feeling may be due to the head being fully engaged, which also increases the pressure on the bowels and hence the frequent pooping! The period pains sounds like this LO is eager to make his appearance, so you may not get a very long mat leave before you are also enjoying newborn snuggles!
I had pains in the bottom of my bump in the night and hoped that this might be the start of something, but they have faded now. I was just thinking, this must be the only time when we actually want to feel pain! Has anybody else had pains like this (not really a period pain, more like trapped wind(!))? Might it be a sign? (Hopeful emoticon!)
Oh my goodness, my bump has just produced an audible pop! Sadly not waters breaking but sproglet is doing something strange in there!