so i ordered a 10lb bag of ON choco whey which came in 3 weeks ago. what i noticed different from my previous 10lb was that this bag of whey mixed different. on my first bag, it would leave no chunks or any floating on the top of the glass. but now with this new 10lb bag, lots of chunks floating on the top of my glass. is this bag expired? i checked the bag and it doesnt say expiration date. i got this bag from bulknutrition, along with my first 10lb bag.