Super hungry and thirsty out of no where

So throughout my pregnancy I haven't really had any major cravings just the here and there sweet or salty type thing. Didn't shove my face all day just ate normally like I always do. And I just got over being sick and in the hospital to stop contractions and put on meds that made me so bloated and constipated that I could barely eat because it hurt so bad. Well now that I've finally got all that under control I'm like soo hungry and thirsty allll the time. Like I myself don't feel hungry but yet I'm starving. I don't really give in because I don't wanna just snack and everything I drink especially water has to be ice cold or slushy like. Anyone else starving all of a sudden?