the same thing, pretty much, happenned to my leopard a while back and now shes doing fine...i think its just when there babies they grow rapidly for a short period of time...just make sure the shedding is comming off cleany...they most important place to look are the toes because they can easily rot off...but i wouldnt get to worried...i also dont think it is aggression because these lizards are normally very friendly. just aslong as there size difference isnt to much they should be fine together..they also say 2 males should not be housed together so that might also be your problem..
hope this helped