I have a problem i lost 8 hours of missing time and was not sleeping what causes this?

Many Possibilities : Unable to provide a specific diagnosis, i can only comment on possible causes for such a loss of time. One should consider physical causes such as a TIA or stroke like event. A medication or illicit drug could be the cause. Possible psychological causes might be a dissociative event or fuge state brought on by stress. These are just a few of many possibilities. Check with your md if this happens.