Hi thanks for your question.
You are suffering from osteoarthritis
for which you are taking Boniva.Boniva is brand ibandronate which is biphosphate drug used to treat or prevent osteoporosis
in post menopausal women. The symptoms you are having are typical side effects of the Boniva.It does produce back pain
,headache,upset stomach and pain in arms and legs. Before proceeding further for investigating cause for your symptoms, rule out side effects of Boniva responsible for your problems by stopping the drug for sometime in consultation with your treating physician.
Hope this answers your question.