What are some signs of preclamsia?

My legs, feet, hands arms and face are swollen. My feet dont seem like they are getting better even if I have them elevated, I've tried taking a bath and soaking them. Also I'm 40 weeks and 4 days. I've also been dizzy and couldn't sleep at all last night. Also feel like my hearts pounding. I can't feel my feet. And I've been having horendis pains when I walk, to the point where I'm about to fall over in pain. And my backs hurting pretty bad also. Any ideas or sugestions?? Thank you.