Any tingling sensations are likely from early RSI/CTS symptoms. I would seriously start looking at improving your technique and maybe changing your setup so that you don't end up doing damage to yourself. It's more than just playing on fingertips, it has to do with posture, form, and your setup.
If the symptoms keep up like that, you need to stop. It doesn't matter if you have no history of CTS.
If you don't have a teacher, get one.
====== Huy Nguyen =====
Playing the bass is either easy or impossible. -Michael Klinghoffer