I've been getting a pricking pain every now and then in the chest (left side). I did an ECG (just to be cautious) last Friday ... no abnormal findings. Since yesterday noon again, I've been having the pricking pain. Took Mucaine syrup last night apart from Gelusil syrup as well. I slept ok but the pricking pain has started since I woke up today. Trying to check on the net to understand the cause.