U means seizures(fits)??yes its common u get loss of consiousness after having an episode of seizures.there are many reasons to cause fits.its better if you can get an mri brain done,so that we can look for any abnormality. Lack of sleep,head trauma,any cancers in the brain etc etc .i don't say that u got all those ,but we have to vomit all the causes by speaking with u in detail.u can better meet a physician/neurologist in person to discuss and treat