Has anyone out there made the switch from letrozole to anastrozole because of bad side effects on the former? I had hot flushes, horrendous night sweats and worst of all painful joints. My hands were the worst affected which meant I was struggling to do simple things like take the top off the milk and also not able to do my favourite hobby of crocheting. I only made the switch tonight but have read that changing the meds can cause more problems. Any advice/experiences would be very welcome. Thank you. Mog