Pain in the left chest. Left arm pit.

Hii doctor.. i am 23 year old..from the past few months i am having pain in the right chest ,left chest and also back of the chest. then i went to hospital and doctors said that is because of anxiety and acidity.later on i felt like a sharp pain and i went to hospital.doctor then did ECG and 2D Echo test.and said both are normal..and the comments in 2D echo test are trival mitral valve regulation. and prescribed me esomac D 40 and etizola beta tablets. now from 5 days i am getti g pain in arm pits..down the ribs and also in the chests and back of chest...and i am also getting pain some times in the legs. when doctor said the reports are normal ....why am i getting pains in chest, below ribs and near left chest and towards left arm pit. please do clarify me. i m also feeling like faiting sometimes when i m suddenly getting up from bed. i really want to know what is happening to me.i also attached my reports please do help me.please respond. pleasing u doctors.give me exact info please