If your child is acting, eating and sleeping normally, it is unlikely that you caused any permanent damage, especially if you cannot even find evidence of trauma when you examine her skin.

One concern with head trauma is bleeding inside the skull. This causes an increased pressure that manifests as abnormal behaviors, vomiting, excessive sleeping, and unconsciousness among others. Fortunately, the baby’s soft spot can be protective in this regard. It will bulge to relieve such pressure. If you feel that this soft spot is bulging or tense, or you sense any abnormality in your baby, you should seek medical advice immediately.
LJGMD