My baby as been on Aptimil comfort for 2 weeks now and as been fine! But the past couple of days he has been struggling to pooh! U can see his face go bright red and he's pushing so hard u can see it in his bum and feel it there! But it's not coming! It's so upsetting to see however he doesn't seem bothered yet! I'm goin to take him doctors! Does anybody have any advice or know what the doctor will do for him! He's only 5 weeks old! Xxxxx