This is what I have:
Entering the house, she realized that somehow, inside was worse.
I'm just using the comma here as a natural pause but should it have a comma before 'somehow' as well? That was what I had before but the sentence felt over-comma'd.
Is there a general rule? If I need to look these things up, what should I search under? What part of speech is 'somehow' when I use it like this?