Hi Maria,
I have been taking Forteo for almost 8 months now. I don't know yet whether it works for me, I'll get another DEXA scan in 3 months.
I had a blood Vit D level of 25. Three months on 1500 U Vit D supplement brought it up to 27. I am now taking 3-4000 U Vit D per day and will try to get another blood test soon to see the result.
I am also taking about 600 mg Ca per day to supplement my diet which I estimate has about 600 mg from milk, yoghurt, cheese and others. After developing a strong aversion to the monster pills I am now taking chewable tablets, much better. I look for those with some magnesium in it, preferably at a ratio of 2:1 for calcium:magnesium. I take calcium supplements at every meal, 100, 200 or 300 mg at a time, since I read that the body can only handle 600 mg at a time. There is also an slightly increased risk of heard attack in women who take calcium supplements, possibly because the body cannot handle mega-doses easily, so breaking up the dose in multiple portions may be a good idea. I am also a little concerned about kidney stones since I excreted too much calcium in the urine even before taking calcium supplements. I therefore would prefer to have calcium citrate supplements which are also better absorbed from the gut, but the chewables are usually calcium carbonate. Forteo sometimes increases calcium excretion in the urine but usually is expected to increase reabsorption of calcium from urine. A 24h calcium urine test will show what's going on.
I have a step counter and try to walk at least 5000 steps a day (the goal is 10,000) per day), on some days on a treadmill with 3 pound waits in my hands to add some upper body exercise. No bending and twisting of the spine is difficult to achieve, but I am definitely more careful now, even thinking of getting somebody else to do the house cleaning and other work.
I'm sorry to hear that you are in pain. Did your doctor try to find out why you have such a low bone mass, did you get a parathyroid hormone analysis and other tests? I have no risk factors and no idea what caused this low T-score, something that is unsettling since whatever the cause, it may still be going on and worsen the situation, something I really cannot afford with these bones.
I hope this helps a little even though everything that I am doing is trial and error, without any data to indicate whether I am on the right track. An unpleasant situation, but I fell with a T-score of -4.2 I cannot afford to wait and see,
Good luck!