I'm sorry to hear about your symptoms after the swing accident. Headache combined with vomiting and anxiety following a head injury can sometimes indicate a more serious issue, such as a concussion or other brain injury, and should be evaluated promptly.

• You should seek immediate medical attention if you experience worsening headache, repeated vomiting, confusion, weakness, vision changes, or loss of consciousness.
• Even if symptoms seem mild, it is important to see a neurologist or visit an emergency department to rule out complications.
• Avoid activities that could risk another head injury until cleared by a doctor.

If you want, I can explain what signs to watch for or what to expect during evaluation. Please consider contacting emergency services or going to the nearest hospital for a thorough assessment.To narrow down potential causes, we will need some more information.Please tell me your age and gender.