*Heads up. This sounds kind of stupid.*
When I think suicidal thoughts, I often get a stinging sensation in my right index and middle finger. (Sometimes just my index finger, in which the sensation is usually more intense.) It's always the same fingers on the same hand. I have no idea how that correlates to suicidal thoughts, but it happens a lot.
Is there any sort of explanation for this? It sounds like the most random thing ever, but it's happening and it kind of hurts.