I am not saying this from a position of authority, I barely grew one plant, but those do look like balls, from what I've seen on internet porn.
It also looks stressed - I'm seeing some weirdly deformed leaves, I've seen these with my plant when there was something wrong (under/overwatered, nutrients, or pH). Maybe that's why it's growing balls?
How many plants are you running, don't cull it to soon, I've made that mistake, maybe you can give it a few more days and then you'll know
Show us a pic of the new top growth. I get those sometimes in those positions but still get big buds without issue.