My 2 year old toddled has been waking up at 5am recently and crying out sooo hard for us not to leave the room. he usually doesnt do this but now im worried because his cries are like histerical. i dont know why is he like this. :?

Sleep disturbances in 2 year olds are common. Sometimes, they are undergoing rapid growth and need an additional quantity of food or meal to suppement them during this time. Other causes can include changes to their normal schedule, problems at home, too much TV/Screentime, Illness. A temporary period of extended soothing will not make a negative problem in the long run.

If he is fine during the day,it is unlikely that anything is seriously wrong or that he has anything wrong that needs to be treated.He may be having night terrors which are in the same "family" as sleep walking/talking.Typically the child may seem to be awake but actually isn't and wouldn't remember any of these.It is usually a phase they go through.You can let him go back to sleep and then leave