I am having difficulty with my tomatoes. At first I though my tomatoes were rotting while they were still green, however when I open one up there are tons of little translucent white itty bitty worms in there. Any ideas on what they are and how to treat?

On another note, the leaves seem to be completely eaten up(little holes all over them). I have seen the poop on the plant which makes me think hornworm, but I have not been able to find one. I did find some type of caterpillar inside a tomato, but not a hornworm.