Hi, I am new to this so hope I have posted in right place. My son is 13 days old and since day 10 he has been really unsettled. He is acting like he has lots of wind by crying and holding himself a certain way. I am thinking maybe I should switch formula? Any advice on best one? I am using aptimal (like i did with my daughter) but I hear they have changed the formula. Any one else issues with the new formula? Maybe I should also switch to Dr. Brown bottles? Feeling a bit overwhelmed and worried about him!