pain in the chest can be due to the conditions of heart or lung or of the GI system.
pain on breathing goes more in favour of pleural pain.
this might be due to infection, trauma etc.
i am glad your triglyceride
values are in the normal limits.
i would advise you to continue your medications and if the symptoms bother you or get worse i would advise you to consult a physician.
i hope i have answered your question.