What Causes Stomach Cramps And Enlarged Breasts?

hello im 25 years old not very sexual active but i keep aving tummy spasms which been docs got tablets but dont seem to do anything im off my food as they make me feel bloated and im have trouble going the toilet the back end i have also noticed the my boobs are getting bigger by the day is there an reason for this is it due to the tablets like my mom said please help as im worried that there is something wrong i also suffer from ibs thanks claire