Like I said, I need to do much more research on the topic, but I actually think that candida spreads by infecting the spinal column not necessarily the blood, I have read medical studies about people that have had candida infect the brain and they concluded that this was the way it spread by infecting the spinal column and spreading to the brain. It does seem strange that a severe fungal infection can spread this way without killing a person but this is fact not based on guessing. I just did a quick google search regarding candida found during autopsies and yes candida can be found in every part of the body. You are right that it seems once it infects the blood it can be very dangerous and can lead to death, probably this is the only thing doctors worry about so they only refer to systemic candida as a life-threatening infection that has infected the blood. But it seems apparent that candida can infect many areas of the body and become what I would consider a systemic infection without infecting the blood. Maybe this is because the immune system is set up to protect the blood at all costs and the immune system in other parts of the body such as the spinal column are more easily infected. I still need to do a lot more research, but you should also do more research if you think there are only two extremes, either minor oral or feminine infections or systemic blood infections, there are many different levels of infection between these two, just because you and your doctor are unaware of these does not mean they don't exist. In addition to candida, there are tons of other bacterial infections that can invade various organs and other parts of the body without infecting the blood, this is a medical fact. Doctors don't usually worry about these type of infections because they are not life-threatening but these are slow killers, they place more of a burden on an already stressed system and if western medicine really wants to start curing illnesses and getting people healthy they have to start looking at all of these infections that are very real but not life-threatening.
Realistically it is not as important to identify what types of infections a person has (candida, bacterial, parasitic), the important thing is to treat what is at the source of the infections, stress, we agree on this part. But I do think it is also important to properly diagnose an individual and for doctors to take the matter of candida infections more seriously. Improper diet and lack of calories will increase stress, yes I agree completely, many people on starvation diets are putting more stress on their bodies making their bodies want to gain even more weight. Stress causes a loss of appetite, absolutely I have experienced this first hand.