<s>[INST] High I woke up last night with tigness in my left side of my chest i thought I was taking a heart attack I also have a pain in my left leg I m just wondering would that have anything to do with I m 41yrs of age and I stoped smoking 7 months ago I am on the electric cig [/INST] Hello, Your symptoms could be related to gastritis or gastro-esophageal reflux. Anyway, I would recommend consulting with your attending physician for a physical exam and a routine check-up: - a resting ECG - complete blood count - blood electrolytes. An exercise cardiac stress test would help to definitely exclude any possible cardiac issues. In the meantime, I recommend trying an antiacid or PPI (omeprazole), before sleep. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Ilir Sharka, Cardiologist </s>