What strain are you growing? I've read that a lot of strains will start producing male flowers towards the end of their life cycle if they haven't been pollinated, as that is their actual goal, so at 68 days, unless you're growing a sativa, I'd chop them. My Master Kush usually finishes in like 52-55 days so 68 seems like a long time to me unless its a sativa.

Oh NM, I missed the part about the lights staying on. I'm sure that's what is causing the herm.