There will inevitably be some swelling of the area even though the skin has not been broken. The pain you are experiencing would be normal after an injury
such as this. The dip you can feel is most likely to be the result of the swelling around the injury.
I suggest you take paracetamol
if you need pain relief. Rest if possible. I expect you will feel better in 24-48 hours. If you start to feel very nauseous or start vomiting
or become unexpectedly drowsy these would be indications to go to the ER.
I hope you feel better soon.
Dr K A Pottinger,