Well, his tongue etc might help with the overactive letdown, but not if it's reflux, unfortunately - and it DOES tend to get worse for a lot of babies between 3 and 4 months. That's when I noticed the biggest change. My dd would stop a feed too, like you describe. Meds made a HUGE difference, once we got on the right one - it was nice when people stopped telling me that my milk was the problem!
Try to have some confidence in yourself and your milk. If he's gaining weight well and has lots of wet diapers, and is otherwise developing normally, then he's getting what he needs. Relax about intervals and try to go with cues, when you can. I did what Anne was suggesting - I'd offer the other side if she seemed to want more, but I wouldn't force it (would just make both of us frustrated!).
Please let us know how the appointment goes on Wed - {{{hugs}}}.
