Have PCO, Bleeding, Lower Abdominal Pain, Low Potassium. Done Pregnancy Test. Taken Ovulet And Duphaston. What Now?

Its been about a year since ive first used cocaine and i have probably only done it a handful of times from then until about 4 months ago only doing about a line or two at a time, i have had to EKGs done in the past year and both were fine and okay, my blood pressures fine, and so is my blood minus a little low on potassium but has since been taken care of, i have developed anxiety badly due to this thinking im going to die any minute and that i have done irraversible damage to my heart, sometimes i get weird feelings and it scares me to no end i have been to the emergency room twice in the past 2 months, i need some advice as to what you might think