I am a white 60 year old female, weigh 110 lbs. and I'm 5'2" tall. I have had a Dexa Scan and I have thinning of the hip bones and have osteoperosis of the spine. I want to take the pill form once a week but do not know which, of these 3 offered, to take: phosomax, octonel, or boneva. The nurse said my GYN doctor lets the patient pick which one they want to take. Help!!