小明减肥以后，感到身体疲倦、虚弱，不知如何是好，于是他写了一封电子邮件向健康专家求教。请根据下面内容，以小明的名义写一封120字左右的邮件。
原因：觉得自己太胖，体重不断增加，担心形象不美，有同学背后嘲笑他。
过程：1、去健身房，两三次就放弃了，感觉太累也没时间；
2、节食，坚持了大约一个星期，经常饿得不能继续他的学习；
3、悄悄服用减肥药，一开始有效果，体重迅速下降，但减肥药对他产生副作用。

From:	[e-mail]
To:	[e-mail]
Subject:	Losing weight
Dear Health Expert, I have got a problem and I need to ask for your help._______________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ ______________________________________________________________________________________ On the one hand, I want to lose some weight; on the other hand, I don’t want to risk my health. I don’t know what I should do. Could you be kind enough to give me some good advice? Best wishes! Xiao Ming