You're angry at the (I'm guessing) US healthcare system. I get it. It sucks. But that anger is woefully misplaced going against doctors or random people on the internet. The doctor that treats your ailment is not responsible for how much the clinic, the hospital or insurance charges you. But they will always be on your side and give you advice that they are sure will work and will help you get better.

People on the internet however, a few of them will give you advice that kills you or cause permanent harm without even an inch of remorse. They'll frame it as medical advice as well. Often without even recognizing that what they're doing is harmful. The internet has told little kids to chew on detergent pods, drink bleach, people with COVID to do bleach enemas and horse dewormer, told psychiatric patients to stop taking their medications (leading to accidents and suicides), caused ear infections with recipes for extraneous concoctions for tinnitus, and the list goes on.

The vast majority of the people on the internet do not want to be responsible for stuff like the ones above, so we tell people asking for advice to go see a doctor. If it's so much trouble, there are alternatives, asks for a friend to help you call and set up the appointment, they can come with you into consultation if you feel unsafe. You rely so much on the internet, make a gofundme or some similar donations page and get people to help you pay for the doctor. Hell I would rather help you with that, than give you potentially bad advice. The point is, “go to the doctor” doesn't come from a place of malice, quite the contrary, it comes from a place of care.

And finally, yes, the guy who went to school for 20 years knows more than the one guy who is suffering the same thing as you. Because, the one guy who suffers the same symptoms as you has very intimate experience with one body and one expression of the disease. Without even considering the fact that you have to find that one guy in the sea of million of users who have no idea what they're talking about. However, the guy who went to school has direct experience with thousands of bodies who have had the same disease, and indirect experience with millions of bodies that have been documented with the same disease in scientific and practice journals. He has seen your symptoms not once, but expressing in a million different ways, in a million lifestyles, treated with thousand different ways with control for hundreds of possible variables. He knows what works and what doesn't and can adapt his advice to your specific body, lifestyle and circumstances in ways that a random on the internet simply cannot.