Headache, confusion, memory loss,
dizziness, nausea vomiting, slurred speech
and fatigue are common. Delayed symptoms include depression, irritability, sleep disturbances, seizures, loss of smell etc. Injury to olfactory and lingual nerves of smell and taste could be a cause or it could be that nerves are in shock. Once swelling and contusion following the fall will subside some taste and smell may return. However, when this will happen is difficult to say.