hi lilian
your question to my mind is posted wrongly
chest tightness,
chest discomfort and
chest pain with pain radiating to the left arm is a sign of cardiac disease
the confirmatory tests are ecg, echo, ck-mb and troponin i
of these you say ck is high
i would suggest you meet a cardiologist as soon as possible
they may want to do a troponin i, a stress echo and a coronary angiography
please dont take this lightly
meanwhile start tab ecosprin 150 mg daily
and tab clopitab 75 once daily at bed time
this with tab nitroglycerine 2.6 mg once daily may help you
in case you develop
gastritis, use tab
ranitidine 150 mg twice daily
and please meet your local cardiologist immediately
best of luck
(please note, i have no idea from your query of other existing problems you may have)