@Suzi_S61 Our natural bio rhythms dip at that time of day, so throw in a cancer diagnosis and a general anaesthetic and it's not surprising you get a bit more tired than usual. It will fade with time. The physical tiredness will always be worse at that end of the day as well. Are yoi doing the physio exercises.
It's good to have a plan eh? We humans like a bit of control and certainty, both of which are in short supply with breast cancer, especially when we're first diagnosed.
You sound like you're doing really well Suzi! Good on you. K xox