I often felt that same way about how the meds changed me, but I couldn't risk going off the meds because prior to being diagnosed/medicated I had a very serious attempt and was committed to a Psych ward. I received my diagnosis then.

Prior to my med change in May 2010 I was over-medicated. This was necessary when I was first diagnosed, but it should have been reduced sooner. I'm now on a good med combo and I also practice self care (eating well, exercising, seeing a therapist etc.).

For many with bipolar the longer we stay undiagnosed and/or not on medication the symptoms become worse and/or med-resistant. This was my experience. I would suggest discussing med options with a Psychiatrist first.