"i was exposed to carbon monoxide chronically and it has effected my thyroid. i was having a period every other week when i went into my doctor to see what was going on, and my lh hormone was way too high. i did my own research into the patch &amp; found out about the increased amount of estrogen and figured i&#039;d give it a try. i had already been on lo-seasonique and seasonique, both were great at first, then i&#039;d have breakthrough bleeding. the patch has completely stopped my breakthrough bleeding. i have gained a small amount of weight, but my breasts have grown so i don&#039;t notice it much. the patch does leave a red mark when i take it off, but it&#039;s gone within a few hours and i don&#039;t experience the itching that others have mentioned!"