I was in bad car accident about 6 weeks ago where my car flipped. I was in state of shock for 10 minutes or so. I somehow escaped with minor bruises but don't feel normal in the head. CAT scan showed no signs of bleeding so that's good. Main symptoms are

1. not mentally sharp at all, simple task take a lot more focus and it puts a strain on my brain.
2. feel slight pressure on my head constantly. It's not like a typical headache. It's uncomfortable but not necessarily painful like most headaches are.
3. slight trouble with memory where I can't recall certain names/things
4. personality difference. I'm not as easy going as I used to be. Definitely more anxiety and irritability.
5. Inability to drink coffee or alcohol. Tried drinking 2 beers a month after accident and face got flush with headache. Overall lousy feeling.

Neurologist says I just have wait it out and it should get better in 1 month. Stay away from alcohol and stay active by walking for light exercise. If my symptoms get worse then he says MRI is the next step.

My stress levels are pretty high with dealing with constant pain from another injury. I also have mild case of sleep apnea which I don't use any devices for so may not be getting the rest I need to recover. Fiance thinks I'm holding myself back from getting better and it's all mental which is extremely frustrating.

I'm thankful I'm alive and can still function normally for the most part. The every day grind does wear on me at times though and it's easy to get down. Should I see another Dr. besides neurologist or is his advice sound this early on? What can I do to help myself recover? Thanks for any advice.