No one can tell how long or what rate of improvement you will have. First, yes people do recover. By recover I mean that for some symptoms improve and life changes are frequently made. I found it helpful to keep a health journal over a period of months.

Personally my first improvement was end of the daily severe headache. I still get daily headaches but they are rarely severe. I could go on and on but in a nutshell improvement comes over weeks and months. I am sorry to say but I feel it is best to be truthful.

The difficulty of dealing with so many and severe symptoms can overwhelm a person. It is for that reason if no other that seeing a counselor, IMO is a good idea. If a PCS injury was like a broken bone or a disease then it would be dealt with much differently.