Oh I really hope his crying settles down soon. The lack of sleep is so tough to deal with, our little boy went through a phase at about 6 weeks where he cried constantly from around 4pm but it suddenly got better after a month or so. I would hugely recommend the Osteopathic Centre for Children in Wandsworth. They specialise in mums and babies and I found them really helpful for both me and my son and booked a double appointment so we were both seen together. http://occ.uk.com/ If it's reflux/wind you might find some help at one of the milk spots. I came across a lady at one of the milk spots whose baby had awful wind and cried pretty much all day who was being helped by a midwife called Linda... http://www.guysandstthomas.nhs.uk/resources/patient-information/maternity/support-breastfeeding-lambeth-southwark.pdf