I agree! One of the most common side effects of the use of broad spectrum antibiotics is a yeast infection. It can be bad and evidence in an acute manner like thrush or chlostridium difficile( c. diff.) and even vaginal yeast infection~ or it can be a more systemic, low level of yeast that can affect many body systems and tissues. A fungal/yeast infection is one of the hardest things to get out of your body for various reasons and it's also the hardest to convince the doctor that you may need an antifungal drug...these are pretty hard on the liver and so they are cautious to administer them.
Many believe that most things diagnosed as cancer are just fungal growths that are improperly diagnosed by the medical field...some believe that is quite intentional, as there is very little money to be had on treating fungus and billions to be made on the cancer industry. One saying is that when they evaluate biopsies they don't look for fungus and so they don't see it, as cancer and fungus are often very, very similar..."if you don't look up, you'll never see a duck" sort of thinking.
You can live for years upon years being a yeastie and have any number of symptoms you treat in a palliative manner, all the while ascribing the symptoms to allergies, irritable bowel syndrome, chronic sinusitis, migraines, arthritis, chronic fatigue, chronic lung infections, chronic halitosis, etc. A yeastie person will often crave sweets or starches, which feeds the yeast and also creates more yeast that signals for more sugar and it's a vicious cycle. That cycle needs to stop in order to help starve out that colonization.
One natural antifungal that I've found effective over and over is olive leaf extract~great stuff! Another way to combat harmful yeast infections is with the use of beneficial yeast cultures that can inhibit the overgrowth of the baddies, just like in our chickens.