Indigo,

I would be really hard to advise you without any testing. You really need, at the very least, a holter monitor which records your heart rate/rhythm for 24 hours. This is likely what your doctor was trying to order for you, but was denied.

Once details of your heart rate is seen, then appropriate decisions and treatment can take place.

In the US, many cardiologists have this holter monitor in their office (along with the equipment to read it when finished). If your Primary doctor cannot get the hospital to help, maybe she can look up a local cardiologist and ask them if they have this equipment and can help get you set up. Just a thought.