Hi sprush
Sorry to hear about your ongoing symptoms. It may be that you are sensitive to continuous progestogen even though you are only using half a patch. The one in that patch is called norethisterone, which is synthetic, so you could potentially try a different one? There is another patch called Femseven Conti which is changed once a week. As you have been diagnosed with osteoporosis it would be good if you could find a product that suited you and ideally at the 50 mcg dose, but initially why don't you ask for a different patch?
If that doesn't work then there is the option of having a separate patch and progestogen - there is a tablet progestogen called Provera which some women tolerate better, which could be used with a 25 mcg patch. If you went down this route and felt OK on that progestogen then you might be able to try increasing the patch dose slightly eg to 37.5 mcg....
Hope this helps and you find a solution soon

Hurdity x