Is This a Sign of Approaching Death?

Assalamu alaikum. Due to harsh trials in life, I found myself drawing closer to Allah. I used to wrong others and myself. I've committed nearly every sin, big and small, since my youth, and now I'm 24. Alhamdulillah, I'm praying all five daily prayers-something I never imagined I'd do. I've abandoned most of my bad habits and started reading the Qur'an. I've had this feeling for years that I'd pass away young, like my father who died at 27, but it was just a fleeting thought. Lately, though, I feel death is very near. One night, I sensed something strange in my body; it felt like my soul was gently slipping away. I begged Allah that I wasn't ready and pleaded for Him not to take me, and then it stopped. Still, I can't escape this sense that my time is running out. Is this a sign? I'm not afraid-I welcome it. I've detached myself from this dunya and its attractions. I'm keeping up with my prayers, I've performed Tawbah, and I'll never go back to my former sins. Could my soul be sensing its own end?