I have this problem too, I am a student too and it is frustrating. I do record my lectures in case I am feeling this way. One thing that has helped me this past month is that I started taking Strattera, not for ADHD, but for the flight or fight mode of PTSD. I posted more about it above. It has helped me A LOT. I don't take any other drugs other than allergy stuff, so I don't know if can be taken with other drugs.