I Had An Abortion 3 Days Ago, And Have Felt

I had an abortion 3 days ago, and have felt slight cramping here and there since which I knew was normal and light bleeding which I also knew was normal. Then today I woke up w what I thought was bad gas, as I had pains in my bladder area or reproductive area, making it hard to walk. But the pain continued throughout the day on and off, and seems to have gotten worse his evening. I called the clinic today about it but they just said it is normal to get some cramping. I just think this is excessive. I've had previous abortions and never experienced this. What do you recommend?