Can you over feed a breast fed baby?

Miranda • Mom🐱🐱👦🏼/wife👪🤱🤰baby number two on the way
Can an exclusively breast feed baby be over fed? My son was born 4/5/2017 at 9lbs 7lbs. At his 1 month he weighed 11lbs 13oz. He now is almost 2 months old and probably weighs about 14lbs. I have a lot of people are mom shaming me that I'm over feeding my child. He barely spits up and since he was born only had bad throw up fits 4 times. It makes me feel like crap that I am over feeding him but I feed on demand.. 
Born
One month
Now

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