as in post birth I don't feel like I was 'put back together again' right..

During pregnancy I suffered from sciatica, cramps behind my knees and hip pain. AND 3 months later I still have all these problems and they seem worse

HELP!

Even when I do get 3-4hrs sleep with a newborn, I wake up during the sleep constantly cramping and in pain

Going a little nuts from lack of decent sleep here...