I have a few of those little red spots too... cherry angiomas. they should be pinkish red, flat, small, and like they said, harmless.
As far as the pregnancy and digestive issues go, pregnancies can cause stasis of bile in the liver, and also bring on gallbladder and digestive issues. The Progesterone (hormone) can really impact your digestion and even your liver.
Did you have any itching, per chance? If you did, either during or after your pregnancy, you might want to look into a condition called Intrahepatic Cholestasis of Pregnancy. (Itchymoms.com)
Perhaps your liver and gallbladder are congested form the pregnancy and lactation hormones, and a cleanse could do you some good?