I'm a 21 years old male and mostly healthy (athletic), except for a mildly upset stomach and mild depression (whatever I can call it, it's self-diagnosis).
I have recently regained interest in understanding this condition: The entire left side of my body feels a little numb (a slight pain); left of face, neck, arm, chest, abdomen and leg and stranger to the other half.
I notice this mostly when I'm concious about it, but it's not voluntary, and certainly cannot be projected to the other hemisphere. Activities that take a lot of attention diverts the focus away (as with any pain), but I can't reject the psychological factor.
This has lastet my entire life so far, as I can recall complaining about it as a kid, but doctors could not diagnose. Considering how far I've come, it is hardly critical, but I can't understand that it should be normal.
I'm taking this online for now. Web searches revealed similar conditions, but related to injuries or other serious conditions, so this seems a like a unique one, unless I might've suffered a mild trauma. Nonetheless, it bothers me.