Mom feeling tired evening

My mom feels tired at evening. She sleeps at evening and it is difficult for her to make dinner at night. This problem is from very long time. She was feeling tired though out today. She also started feeling stomach pain sometimes recently. She drinks water less. She also forget tings quickly I mean her memory is weak. She also has some problem in eye and teeth. She is consulting opthalmologist and dentist. She has low bp. She feels a bit pain sometimes in her leg. Can you suggest something for my mom so that she can be healthy?