Hello, i was a little surprised finding this diagnostic in this person. There is surely a kind of depression in the person but i do'nt like this diagnosis because it is not helpfull.

Important is help from a real classic homeopath. The idea about conium is not bad. Also arsenicum comes in mind and also ... aluminium. Do'nt theorise about the aluminium because there is no connection between the use of alluminium materiels in kitchen. In classical (allopathic) thinking the connection is made between alluminium use and dementia or Alzheimer but this is not the only aetiology or origin.

So, we need more information but only a real contact with a classical homeopath can help. It is interesting to follow the case and you can ask more questions but on distance it is difficult to find the real simillium.

So all the remedies mentioned are interesting but not at al determined.
Dementia or Alzheimer can be excluded !! nearly for sure.
Vertigo is important (meniere can be treated depending on finding the real simillium...), fastidiousness and controling are important and this has to be checked...