Good morning my dear Almay.
Listen, don't you give up now, you've come this far and you can do it. It took you a long time to get to the way you are now, so things are not going to be 'normal' overnight you know. You're body has some adjusting to do. I thing keeping your self busy, busy, busy helps. I've been suffering from bad constipation too (sorry everyone, a bit too much info, I know) despite eating more fruit than anyone I know, and drinking gallons of water.
I do think though, that it would be a good idea for you to go and see your G.P and tell him how you feel. It's hard I know, but I think you will be surprised at how understanding he will be and all Doctor's love it when You ask them for help!
Don't give up now, share with your H how bad you feel and let him support you.
I'll p.m you later as have to go now.
Lots of love
Gxxxx