The brain's inflammatory system is on high alert after an injury and so it can over-react and pump out too much inflammation in response to those minor bumps/jolts. That inflammation causes the symptoms.

So your brain needs to learn to stop over-reacting. If you want to get back into Grappling, do a very gradual return. Start with 5 minutes then stop, wait a week, then do a little more each week. Do just enough to cause mild discomfort but not so much to cause a setback. And wear a helmet to protect your head.

When you experience symptoms from minor bumps, take a double dose of Omega-3 DHA and Curcumin immediately after the incident. Both are anti-inflammatory and neuro-protective so they will protect your brain from possible injury.

A lot of the foods we eat, especially refined carbohydrates and processed vegetable oils, cause inflammation which will exacerbate your sensitivities. So you should adopt a low carb high fat / ketogenic / sugar free / wheat free / organic diet to help keep the inflammation down as part of your treatment.

• Stop eating sugar and refined carbohydrates (fructose, wheat, white flour) because they cause inflammation, lack nutrition, and are acidic. Replace wheat with whole grains such as Quinoa flour, Almond flour, or Chickpea flour.
• Avoid processed vegetable oils such as Canola oil as they can cause oxidation and inflammation which is destructive. Cook with healthy saturated fats such as Coconut oil, Olive oil, butter, or animal fats instead, and eat lots of it.
• Processed foods often contain the bad ingredients and added sugars so they should be avoided.

A neck injury will also contribute to the symptoms so keep pursuing that treatment.

The goal is to give the body optimal nutrition and optimal conditions so the brain can heal itself.