Thanks ladies. I realised that yeah, DS often "skips" a feed during the day if we're out and about. I will often think (whilst walking through a shopping centre) that "he'll need a feed soon" but he doesn't ask for one, and next thing I know he's asleep and goes another 2 or 3 hours before having a feed.

Having said that, the last couple of days I've made sure that he's feeding every 2-3 hours during the day, and noticed that he DOES ask for it when he's not distracted by the world around him. Even so, he's STILL waking every 2 hours overnight. The last three nights he's fed at 9pm, 11:50pm, 1:30am, 3:30am, 5am, 7am, 9am, etc. And they're usually big feeds, not snacks. I've tried swaddling him, not swaddling him, checking that he's not too hot or too cold - basically anything that might be the reason he's waking so much. But it doesn't matter - it appears that he is only waking because he's hungry, and this must just be a growth spurt. Which makes sense, cause he appears to be growing in front of my eyes and I've noticed a few changes in his behaviour too - he's started giggling a lot more, and reaching out for things. His head control has also become a lot stronger too. So perhaps the extra feeding is also part of a neurological leap? I guess I'll only be able to tell when I look back on these few weeks...if they ever end! God, I really need some sleep!