<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am recovering from acute P.E. - 3 weeks ago.Now on 8mg coumadinday.About oncetwice a day i feel weak, sweaty after I have been on my feet for a while and have to sit down for a while.Is this an aspect of my healing, or the medicine, or low BP, or what? Mary54.  <response>: Hello Mary! Welcome on Chat Doctor! Regarding your concern, I would like to explain that your current symptomatology weakness and sweating is nonspecific and may be related to several health disorders, including an ongoing inflammationinfection, a chronic disorders cardiac, pulmonary, hormonal, metabolic, anemia, etc.. Considering your recent health disorder, most likely causes could be the compromised overall pulmonary function, or right heart failure not rarely found in important PE. Coming to this point, I recommend consulting with your attending physician on the opportunity of performing a careful physical exam and additional tests, including:- chest X-ray study,- arterial blood gas analysis,- cardiac ultrasound,- anticoagulation level INR,- complete blood count,- thyroid hormone levels,- liver and renal function tests-fasting blood glucose level At the end, you need to frequently monitor your BP and heart rate values and refer them when meeting your doctor in order to properly optimize your ongoing therapy. Hope you will find this answer helpful. Kind regards, 