Fosamax and tiredness

Well.....I've had two good bone density tests (the proper test)...the last i had was in 2002, and showed an actual increase of density of 7.5% in one hip, and 4% somewhere else....I was THEN put on Fosamax by my dr. because I am "white, thin, hysterectomy and smoke...." and said he wanted to keep my bones healthy. Hence, I've been on this since. I'm now wondering.....I had alopecia (hair loss) 2 years ago, just patchy, it's back in fine, no recurrence. I'm seeing a chiropractor now, as I feel constantly "pretzeled" My head feels like it weighs 100lbs on a wobbly neck, my fingers are often sore, one of my knees is dodgy, ....we have no athritis, osteoporosis in my family, I cannot remember a female breaking a bone! I just don't feel great all vague feelings. I exercise every evening 20mins on a glider, I'm 105lbs, I eat a sensible diet, I do everything at 100mph, so not sedentary! I go for my Bone density the end of this month, and I have a feeling this is the end of my Fosamax!