Quoting White Chocolate Milk:" I remember that happening. It would pop when I would get up from bed or the couch."
Quoting Allissa Specht:" Look up PSD and speak to your doctor"
Quoting [JadeLee]:" What does that stand for? I tried googling and there are a million things. Nothing pelvic. My hips ... [snip!] ... they still do sometimes, but it never hurts, feels good. You could have a rotated pelvis, they are common in pregnancy."