Behaviour issue. A restless crying.

Me and my wife both r working parents. My son is taken care by maid, grandpa, grandma, and aunt. He becomes very restless and nagging child. Often cries a lot until he becomes tired. Throws things. Sometimes he nags for things as he wants to play with it, like a paperweight or a toy, but after having it in his hand he just throws it away and lies down on bed. He is very very choosy about his favourite dresses. Often he seeks his mom for breastfeeding and becomes crazy for it. Does not want to eat anything. Surprisingly he takes meal by his own hand in restaurant. Several times he got high fever after crying. He can do his school tasks like writing, drawing very nicely but most of the time he refuses to do that. This occurrence happened seldom 1 year ago. But now a days it became regular scenario. We often had to off our office and rush back to home as no one can control him. Right now my wife took her office off and with him at home as he suffered from fever after a restless crying.