I think it is likely you did suffer a concussion. Then, as you obsessed about it, you made it worse or prevented any healing. Now, it is hard to tell the difference between the original organic symptoms and your anxiety caused symptoms. The only way to tell is to take time off, get good psychological support about your anxieties and let time try to heal.

You will find that your anxiety prone behaviors will be counter to a long and successful life, to the point that it often leads to worse psychological and even psychiatric problems. Over my life, I have noticed those who are the most tightly wound from an anxiety perspective tend to suffer the most psych problems later in life.

Keep in mind that anxiety is a toxic polluter of the brain. Toxins prevent healing. The Vitamins regimen I use is designed to help with this toxic environment.

My best to you.