DD is due to get her first immunisations on Thursday but she's quite coldy. She's still feeding alright, not as much as usual but still enough, but she is throwing up (she's never usually sicky) milk mixed with lots of snotty goo (sorry TMI). She cries a lot when she's awake and just wants cuddling and isn't sleeping too well either. Should I postpone her jabs til she's got over this cold or will it not make much difference?