陈大夫: 我女儿上小学三年级,身体一直很好,前几个月突然像换了个人似的,早晨爱赖床,一起床常喊心里发慌,胸口闷,头昏沉沉的。老师也向我反映,她上课时常打哈欠,爱趴在桌上,一副疲乏不堪的样子,我生怕她生了什么大病,带她到医院做了许多相应的检查,医生发现她直立后的心率加快、T波下降、收缩压降低、脉压差减少,其他均无异常。请问这是怎么回事,是否需要治疗? 江西 任慧 Dr. Chen: My daughter is in third grade. She has been in good health for a few months. I suddenly felt like I was changed in the first few months. I love bed in the morning and my bed often shouts, panic in my chest and my head is dizzy. The teacher also reflected to me that she often yawned in class, loving lying on the table, a tired look, I was afraid that she had any serious illness, took her to the hospital to do a lot of appropriate checks, the doctor found her upright Heart rate, T wave decreased, reduced systolic blood pressure, pulse pressure decreased, the other no abnormalities. Excuse me, what is going on? Do you need treatment?