My 8 week old is formula fed, she fidgets during and after every feed, often tenses and suddenly pulls half her body to one side, arches back, she also becomes stuffy, sneezes, coughs and rubs her nose after which she spits up and hiccups (every time). She also has baby eczema on her face and chest and she has runny yellow poos which is sometimes seedy (she goes once a day)