We need a diagnose

I have been having does weird moments lately, when:

- I cannot feel my right arm

- I keep forgetting things (of course I have had those situations before, but never so often and in the same way - I go to do something and then I do not remember, what I was doing 10 seconds ago)

- I feel dizzy

- I have no appetite

- I go to sleep after work (at 6 PM then usually), there is a lack of energy