Ok mama’s I’m not sure what to do for my 18 month old. He’s been super constipated since Friday (he…

Ok mama’s I’m not sure what to do for my 18 month old. He’s been super constipated since Friday (he ate a lot of cheese at my in laws on thanksgiving) he is literally pooping out hard Little Rocks. He’s been drinking plenty of water, I gave him spinach, pears and bananas yesterday today he isn’t any better and now he doesn’t even want to drink some apple juice. Suggestions? Should I take him in? This is the first time he’s ever been constipated and he just screams