Pheochromocytoma advised for high bp.

I'm 28 years old and have been taking hypertension medications for the past 4 years. It was 4 years back when accidentally for another problem my blood pressure was checked and it turned out to be on higher side according to my age. My bp was monitored for a week by local doctor and it has on higher side whole week. That is when I was prescribed bp medications. Coincidentally in the same year I was diagnosed with acute anxiety and panic disorder since there were lots of incidents wherein all the panic attack symptoms started appearing from nowhere without any trigger. I had a depression episode 15 years back but it was brought under control. But panic attacks triggered my depression back and my blood pressure was constantly higher. My chest ecg ct everything is normal. Today my specialist doctor recommended pheochromocytoma test. Want to know can there be any connection between panic attacks and hypertension or could it be correlated? I sweat a lot even in air conditioning environment.