I have an idea, having dealt with this for years, and studied it. Neck or jaw issue. Remember hearing about whiplash and dizziness?
Sometimes a bad neck can effect the inner ear. Because the Bones are very close. As we age, all the abuse on our bodies take a tole.. the upper neck starts to shift. From injuries, anything really. Any car accident, sports injury. DENTAL work. any kind of dental work can cause this or shift a persons bite.
The drooling happened to me, sinuses dont drain properly, vertigo, spinning upon laying down or getting up , clues me in on a neck.
Then strange neurological things can start to happen. Weird symtoms with the ears, like fullness, popping,air pressure.. Its all very close together. Feeling of being drunk, lack of concentration and vision changes. False toothaches, and more. heart palps, breathing problems, the list is endless.
Sometimes a bad neck can make fluid back up onto the ear drum.
Menieres can do this too. (inner ear problem) usually a good ent can tell menieres easily.
One more thing on the drooling. Be careful your not headed for a toothache. Or have a low grade tooth festering. Theres a few other thoughts for you to think about, besides it being candida related.