Follow up question

To: Cleveland Clinic
I took your advice and had the heart catheterization.  The doctor said the left heart was okay but found a narrowing in the right heart which caused coronary spasms during the test.  IV nitroglycerin during the test stopped the spasms and dilated the vessel.  He did not mention any other problems and recommended sublingual nitroglycerin to treat the spasms as they occur.  

The sublingual nitroglycerin seems to work to relieve the pain/pressure when it occurs  but I am still conerned over the shortness of breath and fatigue along with a low temperature..95 and widely varying resting heart rate... 46 to 78  and widely variable resting blood pressure  148/98 to 102/70 thirty minutes later.   What further testing, if any, would you suggest?

[Cleveland Clinic]

Possibly a tilt table test for postural orthostatic tachycardic syndrome if you are very lightheaded or symptomatic. This may then cause you to need a pacemaker or to take adiditional pills to increase the blood volume or pressure. But you should also be on a long acting calcium channel blocker such as verapamil.