Drs have conflicting views..

It is quite amazing how cavalier some people can be, in this case your oncologist. As Afrazer says, if the 1% risk was his, he might be a little more concerned...particularly if that 1% pertained to the possible removal of a testicle!!! I was diagnosed triple positive in 2016 and have been on letrozole since the completion of chemo and surgery in 2017. As I'm on a number of drugs for other medical conditions, it can be hard to tell which causes what when it comes to side effects. I have had quite a few problems with not so much dizziness, but vertigo...the feeling that I've just stepped off a merry go round and the earth is still moving around me. Also if my head changes position, such as turning over in bed, putting my head back in the shower or stooping to get something out of a low cupboard. I've been told it is a vestibular disturbance. This is a part of the inner ear and affects our balance. I also had severe anaemia, which has been treated and this helped somewhat. It might be worth asking about that too. By the way, 1% of the pupils in a large city school of 1000 pupils would be 10 children. If a fire broke out and that 1% of children died, the community would not think that this 1% was insignificant. If I were you, I would get another opinion...after all, you could try the AI treatments, and if they all give you very troublesome side effects, you could always stop. However, if your cancer did return, you might well be left with the "what if" question. I wish you luck too in this matter.