Concussion / post concussion syndrome

Had a concussion 3 weeks ago.
Most important direct symptoms seemed to fade in a week but I develop a burning feeling when using my brain which can develop into a true headache too… (watching screens, motion sickness, getting stressed or anxious, playing the piano, reading my kids a book)
Has anyone here dealt with this in the long term and developed any ideas that help appease the symptoms?

U need to consult a doctor @teamydear…This is not a medical forum.