GT Oliver has, remembering he is a few weeks younger than your LO, 7 feeds all of either 3 or 4 ounces. So it doesn't sound like he is having too much at all. My theory was you should base it, approx on 2 and 1/2 oz per. Lb of their weight. I am still working from O's birth weight as we have yet to reach it so it is 9lb, making it 22.5pz per day. IYSWIM. I have used that theory with all four of my children, particularly when using formula as I have been worried about over feeding and I have ( to date) 3 healthy, active and slim kiddos.
If you are worried speak to your HV and ask for some guidance.
vq DS1 is the same, wants a cuddle, or an I pad, or milk or water when I pick O up to feed. He isn't as bad as DD1 was when I had DD2 though so I am feeling grateful for that.
One of my mega amazon order arrives today, I am most excited about this...www.amazon.co.uk/Mums-Family-Calendar®-Sandra-Boynton/dp/076117091X/ref=sr_1_1?ie=UTF8&qid=1353743457&sr=8-1
Nanny arrives today from Northern Ireland.....hooray!