My sister has osteoporosis, and took Prolia. She stopped after a year due to being afraid, like you, of the side effects. She hadn't had any problems, with side effects, but just didn't want to take the change.
It's like everything coming out now about meds for chronic heartburn possibly causing heart problems! I get terrible heartburn occasionally, and was taking one of the drugs warned about. Got off them immediately.
Scary stuff. Can you take Tamoxifen?