Chronic fatigue... I'm thinking of getting an autonomic nervous system test. Where is a good place for that?

My workload has increased so much lately that I often end up passing out on the sofa without even being able to wash up. I wasn't originally the type to have poor stamina, but now it's hard to even get up in the morning and my lips are chapped, so I feel really down and am thinking of getting an autonomic nervous system test. People around me have recommended it a lot because they say it's really good for recovering stamina. Is there a specific way to choose a hospital or Korean medicine clinic that provides good treatment after an autonomic nervous system test? If you have any tips or know of a reputable place, please share them with me.