I had a MAC infection in 2020. My pulmonologist and I decided to take a watch and wait approach, so I did not take meds. My symptoms were much as you described. I was losing weight, losing hair, coughing day and night (and pulling muscles) but not bringing anything up, dark circles under my eyes, no energy. I have relied on acupuncture for various issues in the past, so I decided t give it a go. My acupuncturist took one look at me and said, "You"re depleted." I thought that was the perfect word for how I felt. Acupuncture certainly did not cure my infection, but I did feel like I had more strength, like my body was giving me something to work with, like maybe things were starting to turn around. I'm not making any recommendations, just offering my own experience.