Thank you @Afraser, I will have to speak to the oncologist when I see her next. As many others have said earlier it is difficult to continue with a medication that causes these type of side effects. I was planning to go go back to work next month, that would be difficult with these side effects.
Thank you @Wonk for your response, when I mentioned the dizziness to the oncologist, she was very adamant that it is not due to letrozole. What you said is so true, sometimes I think I am creating symptoms in my mind. I might visit the GP or physio to find out if any exercises may help. If you don’t mind my asking why did you need to change others like Tamoxifen, Arimidex and Aromasin? I was going to ask the Onco if I could try another brand or another medication.