If you have been on Antibiotics over the years, you probably do have candida. It's almost a given. Candida is insidious. Antibiotics kill bacteria, the bad bacteria causing infection and the good bacteria that protect the flora in your body. Therefore due to lack of flora candida can grow, and grow, and overgrow. Candida shows up in sinus infections, vaginal infections, jock itch, athlete's foot, thickened nails.
To cure candida requires discipline, but it can be done. If it were me, I would google candida on the CureZone site as well as fungal infection. Then you can decide if you want to continue taking Antibiotics for the symptoms or to find out the cause.