Okay so i think i did a bad thing. when my son left last thursday( came back sunday),i was pumping…

Okay so i think i did a bad thing. when my son left last thursday( came back sunday),i was pumping and i was freezing milk and putting some in the fridge( in one container) every other session..the reason i do this is because i breast feed all day and if i do pump,i may get an oz.at night i fix a bottle with thickener.and i never know when im going somewhere and i dont want to use all his frozen milk before i do go anywhere..so ive been smelling the milk in the fridge and it smells like breath(like a sick person's). i let my family smell it and they say they dont smell anything....any advice?