Arrythmias
You describe a fluttering sensation in the chest associated with chest pain. You have had a number of diagnostic tests which include a normal heart catheterization and echocardiogram, along with a holter monitor test showing PVCs and PACs. The PVCs and PACs may account for the sensation of fluttering in your chest and your chest pain. The sarcoidosis may also cause this as well. Though, I am not sure of the cause of your symptoms.
However, given your normal heart catheterization, normal echo and no documentation of any rhythm problem other than PVCs and PACs by event monitor, you are at very low risk from the stand point of your heart. You also report having sarcoidosis diagnosed from a chest CT. It is possible that this may be the cause of your symptoms. If if does involve your lung, this may be the source of your discomfort. Sarcoidosis may also involve the heart, I would therefore recommend continuing to follow-up with your doctors to monitor the progression of your disease. Hope this helps.
Thanks for your question,
CCF-MD-KE