I literally woke up crying (dream)

Basically I had a dream where me and my brother (15M) were in our school which was now a college. He came up to me and said “theres something good over there to drink” and ran away, but (i think) i was talking to someone so I didn’t go with him. Later I thought, oh I should go check it out too, so I went find him near a small playground thats in our school. I found him. Then I held his arm and then dragged him with me to idk where but suddenly he started acting weirdly like gagging and twitching. I realized he was becoming a zombie. I ran leaving him behind and out the school gate telling everyone to run. But then I saw him get up and start walking to some other direction. I ran crying to him my father came and held him too. My brother started crying saying he didn’t wanna bite anyone again and again, my father started crying too. There my dream ended. I woke up and cried myself back to sleep. I’ve had worse dreams but this was the first time a dream made my cry.

Sorry for this long ahh para😭