I know the feeling. Without meds, my mind either goes on overdrive or completely shuts down on me. In the former case, I think and think and think and everything I see, or everything I think, sparks a new thought that takes me miles away from my previous thought. In the latter, I can't think at all, and I may as well be scooping up water with a net. I like to compare it to two fridge magnets, always repelling each other. The more I try to think, the harder it is to focus on what I'm trying to do because I'm ALREADY concentrating on trying to think.

With my medication I'm excellent; I still have all the sharpness of my mind but I can control it. When my mind goes where I will it to, I can score straight A's and tackle almost anything, but without it I can hardly even finish a sentence.

As for remembering things, I definitely know what that's like. Especially in the mornings or at night, I have to run on autopilot because I just can't function. If I have to remember something at those times, I put a stickinote on my door or the inside of the front door so I see it before I head out; that's the only way I'll remember. For appointments, set a reminder on your phone or something that'll pop up or ping to remind you. The forgetting is the worst part for me, because the medication doesn't help as much with it as with my concentration, but I've learned to work around it. Good luck with you appointment, and I hope you get the help you need!