I am having chest pain from one month its a short duration pain like just comes and goes away within a second, I have also done an ecg for that which came to be normal. I often sleep on my chest facing downward and since today morning since I woke up there is a chest pain on left side around my left nipple. I am not sure if its muscular pain like from inside the chest or outside I can't figure it out. Moreover from a long time I am also having shortness of breath, I gusss that is because of my sedentary lifestyle because from last 3 Months I am only at home no oustide activities like not even a short walk What does this overall indicate