Syntax

Hello everyone,

Could you please tell me if either "present continuous", "present simple" or "has" is okay in the following sentences?

1.

A. He is suffering from piles.

B. He suffers from piles.

C. He has piles

2.

A. He is suffering from polyuria.

B. He suffers from polyuria.

C. He has polyuria.

3.

A. He is suffering from eczema.

B. He suffers from eczema.

C. He has eczema.

I'm sorry to bother you. My question is too long.