Pain

My hips are aching quite often now. I sleep with a pillow between my legs and I partially roll over on top of another one. That gets me comfy in bed, at least. But during the night and often throughout the day, particularly in certain sitting positions, my hips ache. I can't exactly explain it. It's almost a dull throbbing ache. Quite uncomfortable. I feel like I have a vice attached to each hip, and I am getting pulled apart. I thought my hips were big enough already. I hope they don't get too much bigger!