Our 6 month old girl has recently seemed much less content than normal, she often makes loud grunty noises and goes red, looks like she is straining but nappy is always clean. She is also much more shouty/schreechy/cry-ey than normal. Could this be just some developmental stage or might something specific be upsetting her? We have just changed her formula, could it be that?
I thought it was possibly boredom/frustration but I'm not sure now....
Any ideas???