Hi @Heton, I was on Tamoxifen for 4 and half years before switching to Arimidex.
I found Tamoxifen quite bearable. The main side effects for me were fatigue and gynae problems with thickened endometrium which required 3 hysteroscopies. This was the reason I was switched to Arimidex.
Other than that tho, I had minimal hot flushes and aches and pains, much less than I am currently having on Arimidex.
I wish you all the best with Tamoxifen, I hope you cope well and have minimal side effects.
Best wishes,
Michele xx