What Can I Do To Help My Teenage Son, Who Attempted Suicide Due To Concerns About His Height?

My son is 17 years old. Few days before he attempt to suicide. He take a pesticide and admitted in hospital for two days. Now he is ok. The main reason to suicide is, he want to increase their height. Now his height is 7.7 ft. He want his height 7.10ft. Now he is asking to increase his height by any way/method. He asked that if his height not reached at 7.10 ft he finished his body. Kindly suggest me what is the soulution.