SPD in Pregnancy? help?

33 weeks & I've been beginning to feel a lot of pain in my left pubis down my upper inner left thigh (the groin) I can hardly walk, getting up is painful, even dressing is hard, it is definitely worse at night when turning sides. I've told this to my OB but she says its all normal blah blah and maybe that my baby is literally on my nerves. But I am concerned! I feel like it's SPD (symphysis pubis dysfunction) a type of Pelvic Girdle Pain. How do I tell my doctor this. 😢😢