I have hypermobility syndrome and fibromyalgia. I am super sensitive to almost all medications. Now on Forteo, I am noticing bad muscle weakness and joint pain. I wonder if my connective tissue problems are interacting with the medication. Or, could it be high calcium? I get about 1000 mg of calcium a day from 180 mg Algaecal Plus and the rest from food. Forteo raises the amount of calcium in the blood. I don't know much about my hypermobility, but joined in since some of you also have connective tissue problems.