I noticed about a month ago my 15month old son has a pea sized squishy little lump at the back of his head almost near his neck I've monitored it it hasn't changed in size and it doesn't seem to bother him atall not even if I feel it just wondering has anyone had the same with there child I'm going to take him to the doctors about it purely because its not gone and it's been some time my mum said it could be a lymph node but I don't know