Fast let down/oversupply

Suzie • First time pregnancy my husband and I have been trying for a long time so I'm very thankful/nervous about it!
Hey mommas!
Our LO had his 1 month check up today and our doctor told us he was a pound over the typical weight! 😮
He suggested I was overfeeding him and have an over supply -we were generally relieved because with all his symptoms he had (excessive gas/fighting boob/fussiness) we were concerned it was reflux. 
The doctor recommend I pump a few minutes before feeding -the only issue is our LO eats about every hour! 😰
I was thinking of switching to exclusively pumping and feeding him with the expressed milk. 
Any experiences with this?