My 7 month old has had a nightmare trying to do a poo ever since the start of weaning. Before that, until 6 months, he was exclusively breastfed and had no problems. Now he takes lactulose every day and I also give him glycerol suppositories when he hasn't been for 4 days. He is constantly straining and crying and really cries more over this than anything. Does anyone have any suggestions, or any words of encouragement? I am still brestfeeding and he drinks lots of water, diluted prune juice, eats lots of veggies etc. Is this just a stage?