Ive been having dimming vision after hitting the back of my head accidentally last month. every morning i wake up with dimmer vision. i slept awkwardly that night with almost a 90 degree angle in my neck. what do you think it is? neuro bked mths out?

Not feasible to assess consequences of your head injury, but might consider MRI imaging as part of current evaluation. However, would suggest a visit to an ophthalmologist ASAP, to check for various ocular issues causing your symptoms.

Vision loss can result from ocular and/or neurological causes. If yur vision is "dimming" you need to be evaluated ASAP. If necessary, go to an emergency room.