I'm with you juju and I'm only 27 weeks! Am pretty much stuck at home due to SPD and unable to move around much or do anything. I'm horrified at the amount of weight I'm piling on and hating myself for the moany miserable cow I have become.
HOWEVER, I have realised that even if I knew this pregnancy was going to be so horrific before we started trying I would still have wanted DCs enough to go through with it (if that makes sense).
This is a temporary state of being, I won't feel like this forever. And once the baby is here and I'm struggling with the reality of looking after a little person on little or no sleep and all the other challenges they bring, I bet I'll wish I was pregnant again! So I'm trying to enjoy the down time at the moment.
I've accepted I might not get more than 1/2 hours of sleep in a row and am looking at it as preparing for when the baby is here. I've booked myself in for some pampering (mani/pedi/pregnancy massage) and I am not going to worry about how much that costs! I have arranged to meet friends close to home for lunch so I can get out of the house and have some adult conversation.
And I've started sorting out the nursery and looking up activities to do in the local area once I'm on Mat leave. Plus I've stocked up on books and films I like to get me through the next 13 weeks and beyond.
There is no point worrying about things over which you have no control. I have been disciplined about losing weight in the past so once the baby arrives I plan on doing my utmost to get on with losing weight then. And I'll deal with anything else if and when it happens rather than worrying about it now (I'm clearly having a positive day).
Hang in there! You don't have much longer to go until your LO is here x