have nothing to do with your intestine problems, so relax on that part.
well you getting big pimples suddenly i need to ask a few questions so as to provide you with a detailed answer
* did the problem start all of a sudden?
* are you taking any hormonal
* are you using a lot of oily cosmetics?
* is your menstrual history regular?
* do u have any excess unwanted hair growth?
* any relation of your pimples with your monthly cycles?
the answers to the above que will help me guide you