Contractions 3mins apart for 4 hours...

KP
So I've been having pretty painful contracts since 830am and its 1:30pm.... They are about 3mins apart average, according to my tracker. Has anyone had this? It's my second baby and I'm 33weeks. My dr said drink water and if I can't breathe through it go in... I can sometimes breathe and sometimes not... Baby is kicking and moving so I know he is fines...