I have been on lisinopril and atenolol for 3 years ,I have cronic sinusitis that makes me cough violently,sometimes my denture flys out,im severly depressed with suicidle thoughts.i sleep 12 hrs a night,i feel like shit,my friends have all desserted me because ive become meaner than a rattlesnake,im losing my business because I cant carry on a conversation with my customers due to the coughing,can I stop taking these meds before they bankrupt me or kill me?