A few tips. I distinguish between more immediate reactions to ingredients, and longer term reactions to hormonal changes. For the former, try different manufacturers, or even brand name, and then try a different type of aromatase inhibitor.

For the latter, hot flashes happen at first and tend to fade. Bone density dropped then stabilized for me. Any joint pain was relieved by walking more than 20 minutes. My oncologist told me she heard this from many patients: a short walk hurts, a long walk doesn't. For me 45 minutes did the trick.

Don't expect misery! I miss my Femara: it was my security blanket.