I am an idiot. 
My 5 month old has severe reflux and CMP intolerance which took several months of neocate and lots of meds to calm down. He is also teething and I (without thinking) have given him teetha powders several times over a few days. I have just seen on the pack they contain lactose. If he is CMPI is he then intolerant to lactose? Will this be what is making him so fractious and his nappies so offensive? Not the teething?
I am so upset about this. Have I just set him back massively?