You are in Member Communities . I can give you some general information and opinion which you might use to educate yourself and to use in communicating with your doctor.
Many adults complain of problems with concentration, focus, or memory.
It is extremely common in college and university settings. The exact presentation can vary, and I still haven't heard what your difficulties are. This can very much sap concentration, focus, and memory even at mild levels. Very low levels of anxiety can actually sharpen focus, but moderate to high levels of anxiety usually worsen it. Remember that melatonin can affect sleep cycles for the worse if it is taken too late at night.