Josh had his 4 month doctors appointment on Friday and everything went well. He is a whopping 15lbs 13.5oz and has gone from the 10th percentile to the 60th!! His height is now in the 70th percentile :-)
We saw a different pediatrician for this appointment (we wanted to make sure we knew all 4 doctors in the practice) and he believes that waiting until closer to 5-6 months is better for solid food. The other doctor we had been seeing had mentioned that sometimes introducing solid foods can help with eczema, but this doctor wasn't sure he felt like it would make a big difference for Josh. I had been thinking that I wanted Josh to be a little bit better at sitting up unassisted before we started solids, so I think we will wait a few weeks and see how he is doing :-) It also works well to let him settle into a routine with the Nanny before starting him on solids.
Overall Josh is doing very well! He is hitting all of his milestones. The doctor gave us some new suggestions for treating his eczema, but if that doesn't work I might need to do an elimination diet to see if he is allergic to something. Hopefully it won't come to that (mostly because I don't want to have to waste my frozen supply!).
Josh did end up getting another low grade fever from his second round of shots, but he didn't seem too upset by it this time. His eczema cleared up a bit after the shots too, possibly because his immune system was fighting the pathogens and not him--just my theory based on the hygiene hypothesis :)
His next checkup is at 6 months, so we will have to see if he keeps up the pace in his growing!