Candida? Unknow illness doctors clueless, need nizoral for fungus feedback...

I need help I believe I have systematic candida I've been in and out of my doctors for 6 months passed around like a cheep street walker from one doctor to another and they can't give me a diagnosis... I'm moody can't sleep or want to sleep all the time bloated constipated crave Sugar alcohol dairy, face and scalp itches like crazy have black and yellow discoloration in toenails, can't remember conversations I hd an hour ago my joints ache back hurts chest pain, frezing in 80 degre weather wearing sweat clothes, constant vacinal yeast and weird mouth ulcers, severe head aches, tingling in legs and fingers...I've been tested for all stds and cleared all test as being clean... Did I mention I'm only 28 doctor has given diflucan for yeast but only one pill which clears rash and then it comes right back... after months of being tossed around I ordered 200mg nizoral to treat my self because I swear I have candida and doctors swear I'm crazy... has ay one taken nizoral? I took my first dose 4 hours ago and just started spitting up thick white phlem is this from the nizoral? I've tried garlic, probiotics, vitamins diet this is a last attemp to be healthy please give me feed back....