I was diagnose about a year and a half ago with insomnia. My doctor gave me a perscription of ambien, but never gave me a refill in fear I would become dependent or addicted to them. My boyfriend was diagnosed seroquel as a sleeping aid, and gave them to me since he never took them. I know it's dangerous and illegal, but I've taken one every night for the past few nights and have felt fine. Anything I should be concerned about?