If your thyroid is not working properly, that can cause fatigue. If your folate and B-12 are low, that delays recovery. The injured brain requires more nutrition than a healthy brain.

What are all the treatments/therapies your chiro is doing ?

I am a true believer in chiro but know many chiros think they have all the answers. Of the 18 chiros I've seen over 35 years, they all claimed they could help me but only 5 or 6 truly did. Many are too aggressive.