Yes they are balls (pollen sacks), yes they are hermie, no you won't have femanised seed. If its yur only plant, you can run it and it will still make smokable bud, but the resulting seed will be hermie seed. If you have another other females, you should kill this thing before it pollinates them.
Edit: Yes you can also just pluck them off, but it's a real dominant hermie and will have to watch it well.