It wasn't until the late 1800s that the miasma theory of disease was overturned in acceptance by germ theory. At some point in the next century, computers will become powerful enough to closely simulate the entire human body. We'll be able to hook up our bodies and compare them to a common model in a sort of "debugging" process. I think what we'll find is a diverse host of viruses and parasites, or other curable abnormalities that are responsible for mental health problems.
Do you mean to say you had depression for a few months (with anxiety on top) ?
The liver flush I did involved a morning celery and lemon juice. 5 light meals. 1L of apple juice spread throughout the day. After dinner a glass of water with epsom salts (tastes like pool water but has epic muscle relaxing effects so amazing sleeps) and psylium husk. On day six involves some more epsom salts, then drinking half a glass of olive oil with lemon juice. There's more to it but you can find this protocol pretty easily. Its quite common to pass a lot of stones in stool the next day which is old bile that has been hardened after being purged from the liver. It's important to check you don't have gall stones before doing the liver flush. An ultrasound will tell.
In terms of parasites I cant say 100% but combantrin works on 4 main types (mostly parasitic worms) [1]. There's also liver flukes which seemed to be explain some symptoms.
https://www.mayoclinic.org/diseases-conditions/gallstones/ex...
Depression and anxiety are nasty. I was surprised to learn they are symptoms of parasites. They've evolved in such a way that they can manipulate the host into craving foods that are beneficial for them (not for the host). Symptoms among others include anxiety, depression and irritability.