It's tricky trying to diagnose someone over the net, but I will admit that a lot of the symptoms you have mentioned I have had too. Sensory neuropathy, carpel tunnel, white coating on tongue, fatigue, stomach problems, loss of appetite in my case too, and a whole host of deficiencies as a result do sound like candida to me.
I also had a loss of libido, but that can be a result of a few things with candida---loss of good mineral absorption (e.g. zinc, iron etc), effects of candida on thyroid specifically (which can also kill libido etc) and candida effects on endocrine/reproductive systems specifically (it can live in organs etc).
Food allergies are also really common, like Lizzie said, and I have a lot of them too.
Having said all that, alternative practitioners do the diagnosis on the basis of other questions. For example, although a lot of us (me included) had gut-related symptoms of candida (e.g. I have a parasite and that usually preceeds candida development), it is possible to get it through other ways as well (e.g. sex---if there is a cut, candida can be transmitted directly into your blood stream at that point).
You might want to look into an alternative practitioner who is experienced with candida specifically and also at whether your questionnaire responses on some of the typical candida questionnaires indicate a likelihood of it. Otherwise, it is also possible you may have a different or unrelated condition (thyroid, endocrine, etc).
I know you're feeling really discouraged right now and I think a lot of us probaby have gone through similar issues. I saw about 10 doctors or possibly more before finally I was able to get some help from someone who really knew about it and what all the symptoms meant. I wish there were more I could do to help you.
This site might be of some use. I can't say for sure, but at least there is a questionnaire guide/candida test link to whether or not you may have candida. Also a "contact us" link in the left frame. They may be able to help.
http://www.healthyinformation.com/
The specific questionnaire guide they use is here and it is done on a point system. In other words, there is a likelihood that above a certain score, you may very likely have candida. At least it might help to give you some idea of how likely it is that candida is underlying these issues.
http://www.healthyinformation.com/CandidaTest1.pdf
Sorry I can't help more than this though. I know it is VERY frustrating to feel so absolutely exhausted and sick and have no doctor who is taking it seriously or who are all saying that there is nothing wrong. One doctor said I was a hypochondriac and my hair was actually falling out in clumps at that point!!!
Hang in there.