out of the past 6 nights, this has happened 4 times. he takes some milk then starts throwing up, just pumping out everything in his stomah until it's empty. I can't figure out what's causing it as it's not happening during day. he used to take his last milk feed really well and now it's just misery for us both. anyone had anything like this? I'm going to take him to GP as soon as i can get an appointment.