Hello iam44years old havepvcs 3years ago iwas in...

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What is the PVC premature venticular contraction ?
 is a relatively common event where the heart beat is initiated in other place than what must intiated from  rather than by the sinarterial node , the normal heartbeat initiator. PVCs may cause no symptoms at all, but they may also be perceived as a "skipped beat" or felt as palpatation  in the chest. 
What are the symptoms ?
1.may have no symptoms at all
2.strong beat 
3.palpatation 
4.lightheadedness
5.chest pain 
6.faint sensation 
7.fatigue
8.hyperventalation 
9.menstrual abnormality in female 
What are the causes ?
1.adrenaline 
2.cardiac disease cardiomyopathy 
3.medication as digoxin or tricyclic antidepressant 
4.alcohol 
5.caffeine
6.stress 
7.smoking 
How to diagnosis it ?
1.ECG
2.