My two previous bone density tests in the past 6 yrs were perfect... now I'm told this spring I have 5% bone loss in hip... never had a 'bad bone' report before. The technician said 5% is a lot to lose in only 2 yrs time since my last b.d. test. Coincidentally, I started on thryoid meds (levothyroxine) in mid April. I hear now that these meds can cause bone loss! Perhaps my thyroid med is the culprit? I'm on VitaD3 8-week therapy now too b/c of this new development, ugh. Do all thyroid meds do this or just this one. I am concerned about adding a new problem while trying to solve another, frustrating... thanks.