Hi and welcome to the boards!
OK....can I just ask if you can get a new doctor??
I'm sorry, but he seems really clueless. I'm not one to generally criticise docs because they usually do the best they can, but it really seems like he's giving you bad advice. Sorry to be so blunt, but:
1. Exclusively Breastfed babies CANNOT be overfed or overeat. They take what they need. If they're hungry, you feed them - especially when so young!
2. Don't stick to a 3 hr regime if your baby is hungry earlier - you do not "discipine" a baby's eating habits! ESPECIALLY a 2 week old!
3. BF babies can have wind and gas just like bottle fed babies - this whole eating thing is new for them and it can take a while to get the hang of it. Also, if the latch isn't quite right, they can swallow some air, which can lead to discomfort. It's NORMAL!
4. The fact that you're even on this site suggests you don't agree with CIO, and I can't imagine CIO with a 2 week old. It's just cruel. They don't understand that when you're gone, you still exist - they haven't reached that developmental stage yet. They cry because they have needs! Tracy believed that when you let them CIO, it breaks trust and it can cause some serious rebound insecurity - that could be happening.
Honestly, it sounds like you're more sensible than your doctor. Have you read any of the Babywhisperer books? Starting EASY is about reading cues - we don't usually talk about feeding on "demand", but rather feeding on "cue" - you learn to recognise when your baby is hungry, so you're not feeding all the time, but when he needs it....and sometimes 2 week old babies need it every 2 hrs.
Here's a link on starting EASY:Breastfeeding and EASY in the first few weeks
Hugs and let us know how else we can help!