Thanks for consulting at my virtual clinic. I have carefully worked through your case, and I can realize your health worries. Being your physician, I assure you not to worry as I will take care all of your medical concerns. since the incident occurred three nights ago there is nothing to be worries. it cannot be a major head injury. some times mild contrution could be possible. Or the dizziness might be due to some other thing like stress, low blood sugar, high or low blood pressure, vertigo. all of this can happen to any one and doesn t need treatment if the problem is not persisting. go consult a doctor if the giddiness is persisting or interfere with your routine activities. Hope it helps. If you need further, detailed and quick assistance related to any health issues in future, feel free to ask me a question directly from my profile. Have a wonderful time ahead. Best Regards! Dr. Arunmozhi varman