I'm 28yrs, I weigh 51kg my height is 4feet 11inch. Pulse rate is 79bpm. I'm having lightheadedness from past 4 days. While sitting also I have mild lightheadedness and sleepiness. I have other problems such as feeling hungry after eating, mild chest pain now and then from past few days , sometimes weakness in arms especially in biceps,experiencing diarrhea since 1 day, however no loss of Appetite. 1year back I had chest pain neck pain so had undergone ecg, it came normal. Can someone explain y I'm having these symptoms ? Do I need to get a ecg done again? R these all related to heart? Am I having a stroke?