toenail fungus will not cause systemic symptoms but if your immune system is somewhat weak or challenged you would be more prone to getting a fungal infection. this would be the only likely association. if you feel poorly it is not due to the toenail issue.
can toenail fungus cause fatigue and dizziness? . i have been extremely fatigued and get dizzy a lot any can not figure out what is causing it. i have been to the dr a few times for it and had blood work done ( thyroid iron cbc b12 cmp a1c) and everything has come back normal. i feel like a zombie. i get plenty of sleep most nights 7 hrs. i have had a fungus or something on my left big toenail for a couple yrs and i'm wondering if that could be causing me to feel like crap.