Hi Hannah I’m 3 weeks PO and yes I get really cold boobies too & I start shivering around my chest , mine are only if I am outside or in a cold area , I just put this down to really thin post op bra’s , I was so use to major padding and chicken fillets I assumed i just never got cold boobs in that area if that makes sense ! Also I guess it’s just the muscle repairing is major sensitive x