My son is 8 months old. I've wondered for a little while if he got any milk from my right side whenever I start on my left. I hear a good suck swallow, suck swallow on the left, then don't hear it on the right. When I start on my right side, I hear the good suck swallow on both sides, so I know he's getting milk from each side. When I went to a lactation place the other day to weigh him before and after a feeding, they said that he only got one oz from me, and I started on the left side. So, I think my suspicions are right. I am working to build up my spoke at the moment. I'm thinking about just always starting on the right side. Is it really all that bad to start on the same side all the time? I know they say to rotate. Anyone else gone through something similar?