omg where do I begin had a lumpectomy 13/12/16 results 2 weeks later back in 10/1/17 for second operation again 2 weeks later back for results back in 7/2/17 for mastectomy all this was fine it was like a rollercoaster didn't have time to think about myself only how my family would cope etc then a month on I started taking letrozole and bang I have never felt so unwell is this normal? Has anyone else experienced awful side effects from this tablet?