Is he really hungry?

Ka

My baby is 4 months old and he was sleeping anywhere from 5-8 hr stretches at night. The last few weeks hes been waking up every 1.5-2 hrs and the only thing that will get him to go back to sleep is nursing. I try to offer him the paci or rock him first but he just cries until I give him the boob. Can he really be hungry every 2 hours or should i try something else? He will literally scream until I let him nurse so I just let him. 🤷‍♀️ But I'm exhausted!! And I really don't want to let him cry it out.