Boudicca (nice name btw!),
I have had some digestive problems at the beginning too, but they usually cleared up by Day 2. But mine were the opposite of being stopped up
When you say "normal" bowel movement, what do you mean? Not to get too TMI, heh! But there is much less food in your system on this plan, so I think it's normal to actually poop every couple days or so, and have it be small.
With 5 shakes, I know the fiber level is decent, so I bet you will see things clear up soon
What is your typical daily menu? And what did you usually eat pre-Medifast?
I would try drinking more water... and you might try Gas-X for the gas
It's been 11 days for you now I see. How are you doing?
Hope you feel more on track