I breast fed DD until 3 months, then switched to combined feeding which works really well for us. However, DD has been looking for a bottle every 3 hours so yesterday I switched to hungry baby formula to see if it satisfied her for longer. She had two bottles of it yesterday afternoon and was completely hyper for the evening! Usually sleeping from early evening onwards, she was squealing, shouting, wanted to play etc. I didn't make any connection til giving her another bottle this morning (having breastfed overnight) and she is now hyper again! Has anybody else experienced this? Could it just be coincedence??