When I arch my back as far as I can it sort of hurts, like there is pressure on it. It started as it hurting to touch the center of my spine. It was like the center of my spine hurts. I don't have health insurance yet so please just give suggestions of what might be wrong with my back. Also, I'm not arching my back to where it hurts, it hurts when I arch it to how much I've been able to arch it before. Its like around the area of my belly bottom that is at the level of my spine or my lower mid back area. Any suggestions of what this may be is appreciated. Please don't just randomly guess.