sorry no pic dont have a camera plan to get 1 soon though it would help me out a lot.theres 1 main stem coming out of the ground then it forms into 2 seperate stems.
Did the top of the plant get cut off at anytime? It almost sounds like the plant was topped. When you top a plant it will break into two stems just like you are saying.
I have had that happen before i called her the twins make sure you give her lots of light to support those branches and try pinnng down the branches you can essentailly have double the yield with double the plant.