Hi, for the last 6 days my stomach has been rumbling really loud and is quite upset. I've had diarrhea. I've had lower period cramps with some light pink when i wipe. My lower back constantly aches, my body feels sore and my breasts have gotten bigger and are really tender. I took a hpt 2 days ago which was negative. I don't really have a proper menstrual cycle as I am on the mini pill. I don't even know when my cycles are due as it is only ever light and inconsistent. Has anyone got any idea or even had something like this?