Has your memory been affected post treatment?

I struggled initially when I went back to work and literally had to write everything down.  Even now I carry a diary and notebook and write down keys words from coversations so I can recall it later. Anything new learned on computers...I write it step by step. 

My memory has got better but when I'm stressed or overtired  I have trouble recalling names etc. I finished chemo in August last year and Herceptin this year. I'm still regaining my pre chemo fitness. I believe exercise is helping my mental alertness...providing I don't over do it. I remain on letrozole and will do for at least another 4 years.