My first would cry a lot and I remember when people would tell me it usually passes by 3 or 4 months I would think in horror: "I have to wait rhat LONG?" Now, 3 or 4 months passes by so fast that I can't stand it.

I second quitting the pumping. That's probably 3/4 of your stress. Personally, I HATE pumping. I pumped milk for my first baby when I couldn't figure out how to latch her on. I had to quit after 3 months; just couldn't keep up with it. It sounds like he's a healthy baby and if he's getting enough to wet 4 or 5 diapers a day, that must be all he needs right now.

My 7mo daughter is at a stage right now where she practically does jumping jacks while nursing! It drives me nuts because it stretches the nipple. I guess it's the age where they want to be moving around, but are still limited in mobility. They don't have much outlet for the energy and get restless. She's also waking more frequently at night. It could be the teething or the about-to-start-crawling syndrome.