Muscle Motions Not Smooth

Brain and nerves
1

8 months ago I've done something to myself by overexerting during a weightlifting session and experienced all post concussion symptoms even though I never had whiplash.

8 months later, no one knows what’s wrong with me but all symptoms still persist.

Is it a herniated disc? Is it a neurological problem? Please help. anyone.

2

An MRI with contrast will show every detail of your neck vertebras and surroundings , it will be helpful and rule things out too