I can't sleep even if i take meds 4 sleep. i go 4-6 days no sleep then i'm out for a day is there a condition that where a 30yr old can suddenly get?

A wide variety: of physical and mental conditions can produce insomnia. Frequently the person does sleep some and does not realize it. A sleep study as part of an entire package of evaluations will likely show the problem. Without tiredness or dysfunction, lack of sleep....not necessarily a problem. http://www.scientificamerican.com/article/how-long-can-humans-stay/