HI, thanks for using healthcare magic
It is unfortunate that you feel your symptoms may not be getting due attention because of your age.
Often chest related symptoms may not be considered as seriously in younger persons because the risk of
heart disease is usually so low, though there are exceptions.
Heart palpitations can cause
dizziness because they may affect blood supply to the brain.
Chest pain can be due to any structure in the chest from the skin inwards- skin, muscles and bones, heart, lungs,
esophagus.
It can also be related to
anxiety and stress as well.
An ECG, chest x ray would give a basic idea if the heart and lungs are involved.
If these show no changes at all, then it is unlikely but further investigations can still be done.
If these have been done then you can wait till your appointment but if no initial tests have been started then you can do these to show the cardiologist
I hope this helps