question: My mother has Afib and has been hospitalized 3 times in the last 6 months. Fluid in lung - had to be drained- diagnosed with Pluercy but they cannot find what is causing it. She has been doing great for three weeks and though she does not sound like she has any fluid in the chest or lungs she is experiencing sudden serious pain after taking one of her breathing treatments. She lives at home by herself and house a nurse come in 3 days a week to take vital, etc. She also has some swelling in her lower legs, feet and ankles. Temp is 99.8 and BP was 124 over 88. and heart rate was 85. Can you tell me what could be happening?