It's something many members here have suffered from too. My worst cases of insomnia were in the 2000s as mentioned and were largely the result of anti-depressants I'd been prescribed during my college years. I'm off all prescription meds today but it took a lot of support and work to get there. Not something one can do themselves without medical advise or a plan. The 4-days was the result of withdrawal from a medication (Lexapro if I remember correctly) and I've had G.A.D. most of my life which was an underlying cause.