I recently switched from Ortho tri-cycle Lo to Yasmin and HATE yasmin. It's only been a week, but my breasts are HUGE and so sore that I can't sleep and it hurts to wear a bra. I am also constantly nauseas. I plan to switch back to ortho tri-cyclen lo next month, but am worried about getting more side effects from switching back. Will my body "remember" the old pill and will my breasts go back to their original size (hopefully)? Any advice is appreciated!