Hello - my 17 month old DS has been a brilliant sleeper for months and months, and from nowhere is suddenly waking up screaming and screaming (it went on for 45 minutes last night) until he gets some milk. He then drops back off to sleep no problem. This has been going on for about 10 days or so. He eats well throughout the day so I can't understand why this is suddenly happening, but just worried that if we keep night feeding we'll set a habit for it. Not sure if I should be topping him up in the night or not - or if I'm being silly for even being worried about it!!! Any guidance would be much appreciated.