Bad weekend

So Landon decided to take a sleeping strike. Used to sleep 6-7 hours a night and go to sleep while breastfeeding, well this weekend he decided to go to sleep fine on Saturday wake up at 3:30 which was like 6 hours but then woke up every 1/2-1 hour after all day he just wanted to be held not put down to nap and then it took almost 3 hours to finally get him down last night at 11:30 when he slept till 3:30 only 4 hours ugh 
Then I decide to use some of my older freezer stash and tasted it before mixing with fresh milk... Will it tasted absolutely terrible!! I think it has high lipase and I have about 300oz saved 😭 I heard it's fine if they will drink it but I don't know how he could it's awful!! Im going to call the pediatrician and ask if it's ok