Pru - not surprising that you find caffeinated drinks helpful. Caffeine is a stimulant that works in a manner similar to Ritalin. Nicotine is another stimulant that some untreated people with ADHD use to self medicate. I don't recommend the later!

There's lots of new research about wheat sensitivities, allergies etc. You aren't the only one that does well without it! Don't know anything about ginko biloba - but again, many "health" foods and herbal remedies can be as potent as more traditional drugs. The reaction you had sounds terrible.