I was seeing an endocrinologist - suggested by my GP - for osteoporosis. She recommended Reclast, as I had reactions to all other (oral) meds prescribed by my GP. However, after the 1st infusion, I had a severe reaction approximately 12 - 14 hours after the infusion. High fever, chills, sweating, nausea (dry heaves), dizziness, and severe headache. I reported this - She said my reaction was highly unusual. I felt so awful, I refused future infusions. Honestly felt as if I had been poisoned. Now I am working on dietary changes - following a low lectin diet - and significant increase in weight workouts. Slight improvement in my bone density after my last exam. Next one this summer. I will say that I had 2 bicycle 'cradhes'. Both times fell on my femoral neck (huge bruising/hematoma), but no fractures. My dexa score is lowest in this area. So I belive my 'bone strength' might be much better than my bone 'density'. I hope your endocrinologist recommends working on gut bacteria remediation. Much of what I read indicates a possible absorption issue when the 'diet' is nutritionally sound.