Is Muscle Pain On Left Area Of Chest Related To Cardiac Problems?

64 y/o , 6 2 , 235. My meds are lipitor 10 mg qd and Benicar 20 mg qd. Recently I have noticed a muscle twitching in my left chest with resultant changes in my heart rate ( range of 120-150 bpm) and slight increase in diastolic pressure from 80-85 to 90-95 mmHg). These symptoms seem top be consistent with stress producing situations but not conclusive. What is you opinion of my conditions and appropriate next steps for diagnosis. My annual PE is schedule 27 June and want to make sure I report the signs/symptoms accurately so my internist make the appropriate assessment and recommendation next steps to appropriate diagnosis and treatment. Should I also schedule an appointment with a cardiologist.