Doctors tell you that a concussion will heal on its own in a few weeks. This is true for most people, but for about 10% [source], this does not happen. When a concussion doesnt heal on its own it is called Post Concussion Syndrome or PCS for short.
There is very limited available knowledge about PCS in Sweden. The brain injury experts I’ve found and tried to contact have turned me down because my case hasn’t been severe enough.
Cognitive FX
I went to Cognitive FX in late October 2021. It’s located in Provo, Utah in the US. Cognitive FX is a clinic specializing in treating Post Concussion Syndrome. They are a relatively young clinic but their treatment has shown great results [source].