Stabbing vaginal pain

Trice25

I'm 33 weeks pregnant with my second child and as of lately, meaning the past few weeks I've been having increasingly frequent and painful stabbing sensation in my lower pelvis/vaginal region. It's like torture!! Standing seems to make it more intense but it occurs when both sitting or standing. WHAT IS THIS? I've heard conflicting claims of dialation, effacement, baby dropping, cervix pinching, etc.... 

Also my upper inner thighs have been sore, and recently my hips, waist, and thighs have been achy as well.... Is there any relief for this?? Is this normal at 33 weeks?? Help me out people!!