He is receiving treatment for nephropathy.

I have hay fever, so I struggle with spring.

He is suffering from game addiction.

He is suffering from gambling addiction.

He became dehydrated from long hours of running.

My friend is troubled by alopecia.

He is suffering from depression.

He is suffering from severe depression.

He was hospitalized due to thrombosis.

He likes to take a walk in the park at dusk.