@JodieAnne I was put on Tamoxifen in 2011 at my 1st diagnosis after lumpectomy and radiation treatment...I had a recurrence inspite of all of that in the same spot. In 2015 I had another major lumpectomy as am big breasted, chemo and was told to throw Tamoxifen in the bin as it stopped working, studies show it stops working in 1/3 of cases. It is for pre menopausal women too and I had zero side effects on it. When I was placed on Arimidex in Jan 2016 after completing chemo as I was thrown into menopause uuugh!!!! very very hard! I can concur with the pain, joints and feet and I was like an old woman. My Oncologist switched me to Aromasin this year however its no different,so I just put up with it. I take magnesium daily in water with Vitamin D and I have to say have done for a very long time, I now rarely have to take panadol unless Im severe.
So it's not usual you would be switched back from an AI to Tamoxifen, definitely talk with your Oncologist about it. I trialed 6 weeks off it and kept a journal at his request, it was so noticeable. Ive also worked with an exercise physiologist for over a year and it helped alot mainly the stretching more than anything. Exercise in general is still very difficult and the Oncologist said whilst on the medication will forever be impaired and impacted.
xx Melinda