You're welcome and I agree with the above. I suspect that you're too hard on yourself and that this is a symptom that could actually lead to good things in the future. The most dangerous possibility is that of seizures, a mild case of epilepsy could be the problem too.

Overall I'd say you have a mild but annoying problem that may be hurting you in other areas of your life. Nothing to truly worry about, but something that deserves immediate attention.