What Does It Mean If I Have Mild Prominence Of Ventricles And Sulci When I Am Experiencing Numerous Concussions And Short-term Memory Loss?

What does it mean if I have mild prominence of ventricles and sulci? I’m 35 but I’ve had numerous concussions, one major concussion from a car accident in 2013 and I’ve been experiencing a lot of short term memory loss, problems thinking, and problems with speech