I think my little one may have some kind of intolerance - he is 3.5 months old, formula fed (same milk since birth) and for the last couple of weeks has had horrendous diarrhoea and wind- no temperature and happy in himself. He also has a bit of eczema on his arm & gets a red rash on his tummy that comes and goes. I've spoken to GP & health visitor and waiting for stool sample results but has anyone had a similar experience with their little one showing signs of an intolerance at 3 months rather than from birth? He has always been quite a sicky baby and always suffered with painful wind during feeding but the diarrhoea is new. He's not following his weight gain line either - born somewhere around 75th centile and now 50th - although been told that this drop is ok.