I have been having pins & needles and numbness in the pinky side of my left hand for a few weeks now on and off. I am 45 years old, female, blood pressure 120/70, 57kgs, normal cholesterol , non-smoker, don t drink & exercise regularly and eat very healthily. I can t put it down to anything like injury or RSI and I am aware that left side stuff may be heart related, can you give me some advice please? Should I be rushing off to have a heart check?