I’m 50 years old and in good health. I’ve always been able to perform my job duties well and even though I’m not the sharpest tool in the drawer I considered my self very capable of learning new things, but recently I haven’t been able to concentrate and stay in focus on new assignments. When reading or speaking with other people I forget things right away and I feel like I’m a dream. I started taking ginkgo Biloba and it help me for a few days but it stopped. I keep making simple mistakes at work that I never did before. People are starting to notice. Can you help?