 [ Symptoms ] 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 am wondering if that could be causing me to feel like crap [ Disease ] i am sorry to hear you are having a difficult time here are some symptoms to be aware of weight loss of 5 10 in 6 months feeling tired change in bowels constipation or diarrhea feeling cold can not get warm losing menses women thinning hair and brittle nails getting sick frequently with slow recovery more reading malnutrition symptoms budget eating dried beans can go a long way