Adverbs and Nouns

Adverbs can occasionally modify nouns. The effect is creative and informal, and is best not used in formal writing.

I have lots of homework.

The adverb lots is modifying homework, telling the reader how much you have.

However, breaking grammar rules does wonders for adding emphasis:

This book is altogether madness.

Altogether is an adverb. There’s no argument here as to what the speaker thinks of the book.

I’m feeling more like myself after a hot bath.

More like myself is an adverb phrase which is modifying feeling, even though it looks like more is modifying the pronoun myself.

You should assess your own writing based on the audience: would your reader find this sentence structure interesting or disconcerting?