Correct

相思病

/ xiāng sī bìng /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/相思病-Chinese-idioms-Cchatty-22065be5-17f6-41e3-96ee-d7e8148b7dd4-1612777814.jpg

Collocation

1
得了相思病
2
患上了相思病
3
害起了相思病

Definition

相思病

Literally means:

lovesickness

Actually means:

It refers to the symptoms of depression, insomnia, loss of appetite or weight loss that results from a lover's pine for his or her loved person.

男女之间思念过度,以致出现精神不振,失眠、厌食或消瘦等现象。

Example

Used as subject or object. (作主语、宾语)
1
Xiāngbìng
相思病
qīngzhě
轻者
yǐngxiǎng
影响
gōngzuò
工作
xué
学习
  
,
chóngzhě
重者
yǐngxiǎng
影响
shēnxīnjiànkāng
身心健康
  
,
shènzhì
甚至
yīngniánzǎoshì
英年早逝
  

The young affect work and study, the heavy can affect physical and mental health, and even die young.

2
rán
既然
ge
那个
hái
女孩
jué
拒绝
le
  
,
jiù
biè
zài
dānxiāng
单相思
le
  
,
fǒu
否则
huì
huàn
shàng
xiàngbìng
相思病
de
  

Since the girl turned you down, you should stop thinking about each other, or you will get a love illness.

3
hěn
xiǎng
  
,
shì
yīnwèi
因为
zhíde
值得
xiǎng
  
,
guò
不过
fàngxīn
放心
  
,
hái
méiyǒu
没有
cuìruò
脆弱
dào
hài
xiāngbìng
相思病
de
地步
  

I miss her because she's worth it, but you can rest assured that I'm not vulnerable until I'm sick.