Default Nexus 4 to Nexus 5 Data Issues straight talk

Hey guys, I recently bought a nexus 5 and popped in my straight talk sim card but i'm having issues getting data to work. I have changed my apn settings and everything and I even have the little H next to the signal bars yet I get no data. does anyone have any idea why this might be? also its the t mobile sim which I have had for about a year now.