He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

I have hay fever, so I struggle with spring.

He is suffering from gambling addiction.

He is suffering from game addiction.

He became dehydrated from long hours of running.

He is suffering from depression.

He is suffering from severe depression.