From what Ive gathered so far the situation looks like this:
You're a younger female: -1 point towards cardiac issues
Normal stress test (the other tests are much less specific then this one.. Initial ekg and labs mean squat in comparison): -1 point
You got sick shortly before this happened: -1 point (viral illnesses have a tendency to cause inflamation at the joints and connective tissues.. Most common example being "costochondritis")
Pain lasts all day: -1 point depending on some additional details needed
Pain spreads toward the right side: -1 point (cardiac pain tends to spread left because the nerves that go to the heart and nerves to the left side are connected/ signals get 'mixed up')
No accompanying shortness of breath, sweating or fatigue attributed to the pain: -3 points
Anxiety: -1 point
On the other hand:
High cholesterol: +1 point
Family history of high cholesterol: +1 point (almost always accompanies familial atheroscleroris)
Pain starts on left side and is vaguely described: +1 point (cardiac chest pain almost always is difficult for patients to describe)
Nausea: +1 point
Pain does not improve with nsaids: +1 point
Smoker: +1 point
So far that gives us 6 points in favor of cardiac pain and 9 points against.
Of course this isnt any sort of scientific scale or scoring system but its a good way to illustrate the thought process here.
I think with a few more points against in going to agree completely with the cardiologist in terms of whether or not its the heart and maybe offer up some suggestions.
When i say details about how long it lasts, i mean is it continuous all day or does it fade in and out?
Front of chest on the left side? Or top of shoulder? Any pain in arms and neck? Numbness in finger?
I really need details about how long this lasts, could be a deal breaker..
Does it hurt when you move around.. Not necessarily when walking but like if you shift your body? How about if you push on it, does it hurt?
Im not in the business of disagreeing with your cardiologist... I think hes absolutely correct in ruling out SERIOUS heart disease.. And i think hes correct in muscle pain being most likely here.
Unfortunately so far it sounds like theres still very much a chance that maybe a less serious or less common cardiac cause is the culprit.
Is this pain worse at night? Does the chest pain trigger the nausea? Even if you already had these symptoms to begin with.. Is the pain making any of it worse?
Also include any other symptoms that come with your pain like, shortness of breath, racing heart, palpitations or fluttering sensations, fatigue, sweating, nausea.. Evaluating pain like this should literally take a doctor like.. At least 10-15 minutes of just question and answer.. Ideally this can be accomplished while staff draws labs, takes ekgs etc.. I really am not a fan of cutting corners on this one.
Are they worse at night? Can you describe the pain better? How does it feel, where is it located.. What makes it better or worse?
Does it travel anywhere? How long does each "wave" or episode last? From the time you feel the pain how long does it take to start fading away?
Waxing and waning pain.. Which is basically loke a prolonged throbbing sensation.. With each "throb" lasting 5-15 minutes is a key indicator here.
You gave some good information so far with family history, hypercholesterolemia, smoking etc.. But i need more.. Alot more detail.. Including any and all illness to include common colds youve had in the past 6 months