Emotional problems are not uncommon with candida, but each person would likely have different emotional issues.
If you are concerned about a brain tumor, then I would suggest you get an x-ray done.
I would also consider that you may have an underlying issue causing these emotional problems and candida. In my case it was heavy metal toxicity (for me it was mercury from silver fillings). There are a variety of metals and a variety of sources. It's possible you are suffering from a similar problem.