There are many people who have a serious medical condition and never visit a family doctor. They end up with life threatening symptoms and instead of visiting a clinic, they stay at home hoping for the symptoms to improve on their own. Many times these symptoms don't go away on their own, and require a prescription from the family doctor to treat or cure. At times, these people may also look to their peers, who are not medical professionals, for answers which were plucked from a handful of non-reliable sources. Any symptoms (such as high fever, lethargy, blood in the urine, etc.) could be dangerous and immediate medical care should be administered.
The opinion of your family doctor is beneficial and especially helpful when they know your family history - establishing a long term relationship with a good family doctor is very important. If you're unsure of where to find a family doctor, you can look online at your local health center's physician directory. My local health center is Lone Star Family Health Center in Conroe, Texas, and they have a directory of local family doctors serving Montgomery County, Texas. The directory includes photos, medical field, and a biography for each of the physicians. I find this information very helpful when I need to find a new family doctor, or a specialized physician. If your local health center doesn't publish this information online, you can call the clinic and they should be able to send you a list of their available family doctors.