When someone says they "have it bad," it usually means they are struggling with a specific issue or situation. If you're looking for synonyms to describe this feeling, some options include "going through a tough time," "struggling," "suffering," "having a hard time," "feeling down," "experiencing difficulties," and "battling." These words all describe the hardship and difficulty that often comes with "having it bad." It's important to remember that everyone experiences tough times, and it's okay to reach out for help or support when you're going through a rough patch.