Thanks for all of this information! I think I’m going to call the ped and see what else she can tell me.

Lane seems to be perfectly healthy. His weight gain is great - he gained  2 pounds in 2 weeks, and is exclusively breastfed.

I also have a 2 year old daughter. She has never had any indicators of  a problem.

 

I will keep you all posted.

 

Thanks again!!! :)