Most doctors recommend a medical evaluation with any type of head trauma. That you are having dizziness lasting for 24 hours is indeed concerning – more concerning is if you lost consciousness after the impact. You should therefore at least call your primary care physician but a visit to his/her office or the local emergency room is warranted especially if you lost consciousness, the symptoms don’t subside, or the symptoms worsen. A CT scan of the head can determine if you have any injury to the brain or major blood vessels of the head.
Given the nature and mechanism of impact, one of the most likely injuries you may have sustained is a concussion. Concussions are known as “Minor Traumatic Brain Injuries” with the most common symptoms being confusion, headaches, dizziness, double vision, nausea, vomiting, mood changes, inability to concentrate and amnesia. Most patients with concussions recover by day 3 and any recurring headaches often resolve by the 3rd week. However, any vomiting, change in mental status, confusion, and sudden drowsiness may suggest serious brain injury and the patient should receive prompt medical attention.