I'm so exhausted I keep waking at 4am every morning starving hungry and can't get back to sleep. I've fought it so far as I'm eating plenty through the day and already overweight so I really could do without having an extra meal in the day but I literally feel sick with hunger. I'm just approaching 30 weeks. Is this a common thing? Am I just going to have to cave and have an early hours snack or will this pass do we think? TIA!