Wagon,
Im surprised they never asked you to write things down or keep a small journal for that matter.
I purchased a small recorder, the ones reporters use for abt $50.
It's great, and allows me to store alot of recordings.
I find this helps better than writing because I can play back and heart the mood I was in when recording.
As far as your support staff, if they are trained and well versed with PTSD they can read between the lines here and there. Yes, it is best to be as honest as possible besides most are not mind readers so if you dont say anything they mostlikely will take you at your word.
If you have good drs with some instinct and intuition they can at most times work it out themselves.
Ex; if you meet one day and you say you're feeling low, in pain and can not take it much longer. Then less than a week later you are doing summersaults thru the office most will ask "Hmmm... what's up, son?"
So just be yourself and yeah, it may seem no benefit to put your best foot forward whenyou're not well. A good therapist/counsellor/doctor will be able to get to the bottom of what they want to work at that day.