Anastrozole!!! And my Mum

Hello all, hope everyone is safe and well.x

My mum had a mastectomy 2 weeks ago, she was AMAZINGLY brave, doctors at Macmillan were wonderful.

She came out to stay with my sister and seemed to be doing incredibly well, upbeat, healthy eating etc. Then 3 days ago she started taking 1mg of Anastrozole and suddenly she's almost bedbound!! 

Struggles to eat, feels sick, shaky, tired, sounds terrible...is this quite normal I've read there might be side effects but this is like a different woman.

Anyone else had this and did they go away.x