It's a bit more expensive than vitamins, but for a small impact case like yours I personally think you could get some good results out of craniosacral therapy. If you can find a top notch craniosacral therapist (or a cranial osteopath) in your area... oh goodness, those guys can really work wonders.

I also used to take a couple supplements from NewChapter, namely neurozyme. I can't say that any brain oriented supplements ever did me an astronomical amount of good (physical therapy for me was 5000x more effective), but NewChapter is an EXCELLENT company and Neurozyme really has a lot of the bases covered for brain stimulation. All of NewChapter's products are absolutely top of the line in terms of potency and manufacturing standards, though they're usually priced around the midpoint of retail supplements.