Ailments can turn serious if left untreated. This is true for both physical and psychological afflictions. Seeing your doctor is the first step to averting disaster later down the road. This simple but salient point is echoed through the questions submitted to celebrity NHS Doctor Renée Hoenderkamp via health@gbnews.uk this week. Our resident doc sheds light on alternative medicines for reducing high blood sugar, how to deal with grief and the signs of lung cancer on your fingers. Last week, she revealed the best supplements for lowering high cholesterol levels, how soon you can exercise after…