I'm coming up to 4 years since my concussion. Most things have settled except for these crashes I get when I'm tired. I have been treated for adrenal fatigue and that made a huge difference. And I thought I could go back to my work out routine. But the crashes started to happen again. Now I get humming in my head and dizziness. My doctors can't work out what it is - to be fair they aren't too worried. They are sending me to a cardiologist to make sure my heart is functioning well.
The only thing that prevents the crashes is eating regularly - as in every hour - drinking electrolytes in my water and sleep. I just read about the vagus nerve dysfunction and thought maybe this is what's going wrong. I did injure my neck in my fall so maybe the vagus nerve got damaged. My symptoms are that my heart slows down but I can hear it thudding loudly, intense nausea, stomach upset and leg cramps if I leave it, I'll start getting shakes as well. Only calms down after I've drunk rehydrating salts or a banana. Has anyone experienced this ?