Studies have documented altered dream patterns in TBI patients.

Those with severe injuries sometimes stop dreaming. Other patients report an increase in nightmares and/or dreams with sexual content. There is no definitive explanation, but, for the most part, things improve as the patient recovers.

Although you don't dream specifically about your accident, you might still want to seek professional help to make sure that you are not suffering, unbeknownst to you, from PTSD.