my ds2 is 10 months old and has had a cold, runny nose, cough, since before christmas. he also poos at least three times a day. otherwise he seems well, is gaining weight and doesn't seem to have tummy pain. he was bf until just before christmas, then took formula for a while which he suddenly completely rejected a few weeks ago. the only milk i could get him to take was normal cows milk. i checked this with HV who said fine as long as he is given vitamins. but could this be a lactose intolerance? feel now that i shouldn't have given up bf.