Is this constipation?

yeah it is. and dulcolax sucks. Uh..you should change your diet. Try changing to a bread that's high in fiber and un-enriched wheat. ALso try a bran cereal. I like all-bran with yogurt clusters. You can try taking colace from walgreens, make sure you get the one that is a stimulant and softener instead of just the softener. Also, maybe miralax will work for you. Wal-mart sells fiber-one bars that taste almost like candy bars, I think they have like 10 g of fiber in them. If all of that doesn't work, i would find a gastroenterologist.