bloatedness, loose stool, loss of appetite, burning while defecating, heavy feeling and cramps in le

Hi,

I have been suffering from stomach disorder for over a year now. My typical symptoms include severe indigestion with loose stool, a burning sensation while passing stool, a constant bloatedness in my stomach, excessive foul smelling flatulence even after defecating twice a day and loss of appetite. Recently I passed blood with my stool in one day even though my stool was not firm enough to cause a cut in the rectal passage. Of late I have also been experiencing short cramps in my left chest while breathing out and there is a heavy feeling in my left chest. Do I have a stomach ulcer or something like that? Can there be a heart problem too? Please help as I am a student in my final year and I intend to go abroad for higher studies this year.