Welcome to our world. I have the same issues. Doc gave me Levitra. Half a pill does the job but I can plan for a head ache the whole next day. Levitra and the others have some negative impacts on the brain so I stopped using it. I was also low on T and with a bit of T cream, WOW. But, the T cream caused my face to break out like a teen age boy, even at a minimal dose.

YOUR mileage may vary. Talk to your doc.

I would not get too hopeful about the concussion clinic. There is very little they can do for you. Recovery takes time and rest. If you are still living a full and active life, your recovery will be slower. Stay away from alcohol and keep caffeine to one serving per day or less. Good brain nutrition helps. Read the vitamins sticky at the top.