Fosamax and weight training

53 year old female who has taken "F" for almost 2 years - the past two months was the generic version. Have noticed a gradual onset of joint pain and heart palpitations, but am not one to see a doc unless I feel like I'm dying... So I wrote it off to aging. (-:
A friend recently mentioned that she had heard that Fosamax causes bones to be brittle, which caused me to wake up, look around and see what people are saying and what new articles or research are out there. Yeah, sure - there are lawsuits. Not a surprise in our litigious society. More importantly, however, are the comments from real people. Thanks to you who've posted your experiences!
I stopped the drug several weeks ago and seem to have an increase in joint paint. But I'm not going back to Fosamax! Also interesting to me is that around the same time I stopped the drug, I experienced an uncharacteristic downward shift in my mood/mental state. Not sure if there's a correlation to the drug or not...
It is reassuring to see some comments from people who indicate they feel better after weeks/months of being Fosamax free. I am a "gym rat" and very fit/weight appropriate. Weight training and nutrition will be my treatment of choose for osteopenia for now. With time, I am confident that the symptoms I'm experiencing will subside. And any future ailments for which I am prescribed a drug will be very carefully researched by me beforehand.
Be careful out there and stay informed!