Thats why I said to speak to a GP or psych. In Australia, the GP is first line for diagnosis who then refers you on to psychologist or psychiatrist.
I’m just suggesting that based on what OP said, RSD could be a possibility and they should see a doctor for help if they are serious about improving their mental health etc.
I’m red-green colourblind(Deuteranopia) and often think this exact thing, how the reality I perceive is different from others purely due to this.