You should write down daily your symptoms and write down what you just told us then show it to him or her. Keeping a daily log means you do not have to remember everything and it will assist the dr greatly.
I agree with Bubulous, writing down your symptoms is a good idea, and takes stress off you in having to remember everything. In fact that's what I did a couple of months ago when I kept forgetting symptoms to mention to the doctor, and after writing down my symptoms (and also patterns/other important details about them that I had noticed) and reading them to my doctor (if you don't want to read them, maybe you could just give him/her the paper and then discuss it after she's read it), a few important points came up and now I've been given a diagnosis and am working towards getting better :) Hope you find the help you need!