I have been weaning my 6 month old for just over 3 weeks but he has started to become constipated so I have been giving him the odd bit of lactulose by the Dr but not literally twice a day everyday. His poo seems to be solid and everytime he poos he throws up from pushing. Is he still constipated? Is this normal or do I need to do daily laxatives until he is no longer sick/has solid poo. He had laxatives yesterday and didn't go at all then today he's done solid small poos twice and threw up with the second one. Any advice?