How to be 'breast aware' when you've had a bilateral?

Hi ladies

Silly question 1 - if you’ve no bosom left, how do you check the chest wall etc?

Silly question 2 - Am I right in thinking there is no point in feeling in armpit where all lymph have been removed?

I’ve just finished chemo, surgery and rads and I’m not sure what else they can throw at me treatment wise so apart from hormone therapy ‘for a faint response to progesterone’ that I’m still waiting to hear about, there’s nothing else is there?

Hope everyone is feeling ok and doing well.