I think you should be very concerned about the lasting effects of your concussion. Your progression with prolonged symptoms suggests that you are exhausting your brain's ability to recover. You need to seriously consider the risks to your future if you continue to play. Common Return to Play guidelines say the player needs to be symptoms free before returning to play. You continued head aches suggest you should not be playing.

Is there a No Body Checking league you can play in, once your symptoms have resolved ?