My 12 wk old seems to be suffering with a cold, she's got a really snotty nose, her temp is 37.3, she's v sleepy & doesn't want much food. She's still producing plenty of wet/ dirty nappies & she's not so sleepy I can wake her so I'm sure she's ok - I'm just a worried mum! Is there anything I can do to help her & is there anything I do need to watch out for?