I did post in the pregnancy forum but i was just after some advice. My twin girls were born at 35 weeks. 29th May they are now almost a month old. ADD would have been 3rd July. I was feeding them with Tommee Tippee bottles and have changed to Dr Browns. Sometimes they are restless. Seem full of wind and in pain. No matter how long i wind them for that was the reason for my bottle change. Anyone else using Dr Browns?