nutramigem lipil milk

Hi

Is anyone's baby using nutramigen lipil 1 formula, my boy has been on this for 5 weeks now, 3 weeks using thick and easy in it as he was sick alot due to the milk been very thin. He just seems hungry all the time, he's 15 weeks on Saturday and having 7oz every 3 hours. 

How are you babies finding it?

Thanks