i took estrostep fe for about a year, and was just taken off of it and put on yaz. for the first.. maybe 5-6 months on estrostep i was great, but after that i started getting LOTS of cramping, soreness, tired, etc., etc.
i changed my diet from tons of fast food, to none at all, and that helped a bit, but i still had cramps so bad before my periods that i just didn't want to move.
my dr. said that alot of women don't do well on estrostep because it varies the hormone dosage week to week, which is why i'm now on yaz, which is the same dosage every week. i'm doing ALOT better now that i switched.