The Conditions of Lying in Fiction

I'm a writer, and I tend to write parts of factual information, such as insights or impressions, mixed with other fictional aspects. Therefore, I am worried about what constitutes a lie, and what isn't. My intention is never to deceive, but I feel others may gather things in my writings that I didn't mean, or that are untrue. They could easily conclude stuff which isn't factual through them. What are your thoughts? Thanks. Edit: I make many claims in my writings, grandiose or vast claims, which I cannot be truly certain of. Yet, I don't mean them to be taken literally. I'm unsure what is considering lying, or pride, or boasting: is fiction really a realm wherein these things are considered, or is fiction free of judgment? Thanks.