Hammer splitting?

[Scottshopinc]

It has been growing into a Y and today I noticed it was not opening fully, and tonight there seems to be a bubble that has formed in the middle of the Y. sorry crappy phone pic.

 

[WaReefer458]

Kinda looks that way. My golden torch is doing the same thing. Getting really wide and hoping for a second head soon!

 

[djbon]

Its a branching hammer. Congratulation!