So much pressure

I am just wondering if anyone else has or is experiencing this. I am a couple days away from being 34 weeks with 2nd bub & I never experienced this forst time around but yesterday & today I have been feeling so much pressure in my vagina & bum its not only painful its very very uncomfortable nothing helps ease it, panadol, it hurts doing anything sitting laying down, walking, standing. Do I need to be seen by someone is it something to be concerned about. Feeling like if I squat or even try sit I feel like my vagina is tearing apart & I have the feeling of wanting to push but obviously cant push baby out I havent had any other symptoms in relations to being in labour just mild cramping which I am assuming is braxton hicks.