Hi, Nstep2live. Welcome.
FirsT the bad news. Conventional southern-style Biscuits contain fat - lots of it. I wouldn't eat them unless you make them yourself (and make them fat-free) or can see an ingredients list.
Generally, they really aren't suitable for the McDougall plan. You can find some non- fat versions online, if you would like to try making them. Also, I think there is recipe in one of the McDougall cookbooks that looked pretty easy.
Then the good news. Regarding bowel problems when beginning this diet; it is not unusual at all but it will go away. It takes most people a little while to adjust to a high-fiber way of eating, so having problems during the first few weeks is normal. in fact, it is probably the number one problem mentioned in the newbie discussions
.
Given a few weeks, your intestinal bacteria will adjust and you will start to feel better.