Hi Jason,
Welcome to the NeuroTalk Support Groups.
I'm sorry you're dealing with so much.
Here is the link below to the Traumatic Brain Injury and Post Concussion Syndrome Forum at NeuroTalk -
For traumatic brain injury (TBI) and post concussion syndrome (PCS).
http://neurotalk.psychcentral.com/forum92.html
edited to add: I just ran a search in the TBI/PCS Forum for "loss of smell" and there are many older posts.
If you ever need help finding them please just let us know and someone will help you with that.