round leaf

my little blue dream has a nitrogen deficiency it stunted its growth a lot but i found this leaf thats been growing its only got three leafs and there all rounded

any idea what might of caused it

the pictures bad because it was just on my phone but just click on it to zoom in and you can make it out

Try to get a better pic up, usually when it has round leaves it means its in alot of stress or recovering.

Does that happen when a plant is re-vegged?