My son is 10 weeks old and he doesn't seem to be eating as much as he used to is this pretty normal for babies to go through periods of time when they are eating like every 2 to 3 hours and then they go from 3 1/2 to 4 hours with the gap of maybe 6 to 8 hour stretch?

Sometimes I feel like he will eat and yes I nurse but instead of nursing on both sides I feel like he is nursing on one side normally and the other side only a few minutes. He doesn't seem like he's dropping any weight but then I haven't weighed him in a bit any advice or thoughts would be greatly appreciated thank you