kaji,

Welcome to NeuroTalk. Your experience is not uncommon. Many of us have been through the same experience.

You did not give us much information. Please help us.

How long has it been since your accident?
Have you been seen by a neurologist?
Do you have any other medical conditions?
How old are you?
Where do you live? Different locations have different health care systems to navigate through.

Another explanation can be, You failed to notice the car stopped ahead and rear ended it. You were knocked unconscious or your brain was traumatized by the impact with the windshield and you suffered amnesia with a little being retrograde amnesia (before the impact) and some post traumatic amnesia. This would be why you don't remember what happened. This is hopefully what happened.

If you lost consciousness and caused the collision, this is more serious because it means you should not be driving until you find the cause of losing consciousness. Have you ever lost consciousness without a reason?

A hospital is not likely the best place to go. Their standard is usually to stabilize you and refer you to a doctor or clinic. You should schedule and appointment with a doctor. Maybe an Urgent Care Clinic. You should ask to have your neck examined, especially your upper neck.

Your symptoms are sure indicative of a concussion, especially the nausea and vomiting.

How did you hit the windshield if you were wearing your seatbelt?

Please tell us more and there will be plenty of support and help for you. The feelings of despair are common. Just tough it out one day at a time.

My best to you.