My frogspawn has gone all weird!

I have a pretty big frogspawn, at least the size of a softball inflated, and it's all one single head. Lately its sweepers have gone weird. It's getting long stringy ones that will stretch out a good 6-8" longer than the rest. Normally, it was always just a ball, with each sweeper being relatively the same length, but now these oddball things that go waaay out. Anyone seen this?
aha, awesome. Thanks for the info it common for a frogspawn to get that big (6" dia) without growing more heads?