ovarian cysts
"I was on this pill for 5 years with absolutely no problems.  My periods were on time, short and light.  Also my ovarian cysts dissappeared.  Then my doctor decided to change me to a different pill because she was worried about high blood pressure.  On the new pill I've had constant spotting for the last 5 months and now I've had my period for the last 4 weeks.  Ugh!  Since my blood pressure monitoring came back normal, I finally convinced her to switch my pills again.  Oh I wish she'd switch me back to Orhto Tri cyclen Lo, but she picked a new one instead.  We'll see how that goes..."