Ok, to update all the lovely people here who are concerned about me, I just went to see a doc for my chest problems. As expected, I was told to relax. I am too stressed up, and got an anxiety attack. Doc told me it was nothing and told me to take it easy, though I have no idea what the "it' he was referring to. But if the attack comes back again and become more frequent, I would have to go back to him and do an ECG or a lung test for my breathlessness, though he said its unlikely that it would happen since all my vital stats are a-ok and normal except for my cholesterol level.
Another thing to note is that I think the longer I stayed in the waiting area for the doc, the higher my stress level will go up. Kaoz.. There were babies screaming, aunties yakking, children playing etc. And seeing people who came later than me, yet wait a shorter time than me to see the doc just pushed my stress level up. Add to that is the incessant calls from office and customers on my mobile. At that rate, I might just got a heart attack on the spot.