14 day loop results states tachycardia up to 140, bradycardia 42 bpm, ventricular ectopic complexes, supra ventricular ectopic complexes and an atrial couplet. should i be worried?

Arrhythmias: You should be talking to your doctor about the situation to get more information. The rhythms alone don't necessarily imply something 'bad'. On the other hand if you were entirely normal they wouldn't be there. The rest of your condition is what tells you whether you should be worried. Your doctor is best positioned to answer that question.