Here are some alternative ways to say "You're biting my head off": 1. "You're snapping at me." 2. "You're being really harsh with me." 3. "You're lashing out at me." 4. "You're being too aggressive." 5. "You're yelling at me for no reason." 6. "You're overreacting." 7. "You're taking your frustration out on me." 8. "You're being short with me." Let me know if you'd like to adapt it to a specific tone!

1. You're being very harsh with me. 2. You're attacking me for no reason. Both are great ways to express this.

You’re snapping at me.