I suggest to bring someone in with you who can attest to what you're saying and to attest to your previous levels of functioning. When I was meeting new doctors who didn't know me, it was very difficult for me to communicate with them and since they didn't know me, they didn't know what was different or what the problems were. Having a family member there to explain things made it go a lot easier for me.

I also recommend writing everything down on a piece of paper, or typing it out and handing a copy to your Dr. so they have a copy they can refer to and put into your chart.