### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Thank you. I am seeing a cardiologist, because I sometimes have incidents of chest constriction, discomfort, sometimes lightheadedness (and now on Losartan I seem to have that every morning). These episodes pass in 10-15 minutes, but they leave me feeling weak. I ve had high blood pressure for several years and have been taking Atorvastatin and Metoprol, now also Losartan. I fear a real heart attack or stroke. This past week I had a chemical stress test and will find out next Friday if it revealed the cause of my condition. I also will let the doctors implant a very small heart monitor under my skin in two weeks. I just hope I last that long! I am really worried. My cardiologist thinks it s either A-fib or a blockage. Neither sounds very good. I haven t passed out yet, but about a month ago one of my constrictive events resulted in a dimming situation. After 3 Nitrostats and putting my head on my knees, I recovered, but that is the episode that got me referred to the cardiologist I m now seeing. Of course I ll be interested in your opinion.Thank you again. - Helene Langtry

### output:

Hello, In my opinion, you have two problems with your heart, one that will be treated with a pacemaker (that you call small heart monitor), that would be a blockade in your case because if it were A-fib, you must take medications for anticoagulation. The second is that chest pain, that would come from problems with your heart arterial. There is no connection between using your medications and pain aggravation. Seems that your second problem is becoming more dangerous. If you have chest pain, you should go to the emergency room. Hope I have answered your query. Let me know if I can assist you further. 