Ugghhhhh, BC has always caused me to become super anxious...that may be the main culprit. Do some research on the net and you'll find that there are thousands of women out there who have experienced increased anxiety, depression, mood swings, unwanted thoughts etc. from taking BCPs. I am super sensitive to the hormones in them (have tried several brands) and will honestly never take them again. Regular old condoms work just fine IMO
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I also agree that excercise is a great help with anxiety, especially weight training. I work out with DH and we try and motivate eachother to work harder and it is truly a great way to blow off steam.