the last time I had sex was in February of this year. Since then I've been experiencing irregularities in my cycle which has for the most part always been on time... every 26 days for me. Since then I've had it come a week late once. Once about a week early and also for like three months straight I've had something of a mini period twelve days into my cycle. This has always been accompanied by period like symptoms - bloated feeling in lower abdomen, lower back pains, moodiness, and swollen, tender breasts. My breasts worry me as well because it feels like they never go back to it's regular size. I believe I have grown a size bigger, I went from a B-cup to a C. I had my pap done in february as well and i asked the doctor about this and she told me that it's not uncommon for women to have their breasts grow in their twenties. I'm 27. I didn't hear from them which usually means that everything is ok. Should I be concerned about any of these symptoms?