Nursery has just rung cos they noticed a soft spot on the side of ds2's head (he's 8 months). They describe it as like a fontanell, soft and spongey. They say they've just checked out the other babies and they don't have anything similar. Earlier in the week they asked me about an egg shaped bump on the same side of his head which they didn't notice him falling and knocking and nor did I. I made the connection between these - they hadn't noticed. I rang HV and she said to bring him in to the emergency surgery this pm (there are no appointments). I am worried, cos it's his head. What do you think?