Main clinical presentations were with depressed sensorium, coma, stupor, drowsiness, headache, motor weakness, lethargy, and seizure.
[ncbi.nlm.nih.gov]
Symptoms of subdural hematomas include confusion, headache, movement difficulties, loss of sensation, visual changes, speech difficulties, seizures, lethargy, vomiting, and
[healthgrades.com]
As the patient worsens, frank lethargy or coma may ensue. Here is a chronic, subacute subdural hematoma.
[neurosurgerybasics.com]