My sweet pumpkin just turned 4 mnths old...He is also eating lots more...especially in the afternoon. I think it is somewhat of a growth spurt and somewhat of an getting older and more adapted to the world.
For a few days it was pretty tough...It sounds like you and your babe are in that time right now. It does pass...or it did for us. He is suddenly much more aware and does nurse more, but he is not quite as touchy as he was during that time period.
I even called the doctor because my son is usually pretty happy go lucky and he wasnt. The doctor was cool and talked with me and we decided to wait it out before bringing him in. Turns out everything is a-okay.
So anyways, sorry for all the rambling.
I think its cool we are kinda going through the same thing....Take CARe\
Wyatt(my babe) is a happy babe again