mystery

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Across
  1. 6. hardly heartbeat
  2. 7. quick
  3. 8. tiny
  4. 9. condition for thick
  5. 10. itty
  6. 11. not normal heartbeat
  7. 13. line inside you
  8. 14. scan
  9. 17. let go
  10. 18. noise
Down
  1. 1. between
  2. 2. unhurried
  3. 3. thick
  4. 4. circle
  5. 5. super heartbeat
  6. 10. rotate
  7. 12. responsible
  8. 15. take
  9. 16. average