chf is a condition that your heart is in and will remain in. if you have CHF, common symptoms are sob, but they generally don t relieve them self. usually you end up in the hospital because you fill up fill fluid so much in your lungs you feel like you could drown in your own fluid. lasix is a the most common drug to relieve symptoms of chf. with your legs swelling, at a sit down job, your feet swell as a sign of poor circulation. mainly because your hips are always bent, slowing down blood flow to your feet. pressure builds up and your capillaries began to leak fluid and it accumulated in your ankles and legs, which is why when your walking around or sleeping, your hips are straight and there is no resistance. try taking some aspirin. i take aspirin when i am going to be sitting a lot on a road trip on at a desk to prevent blood clots and poor circulation. over time, constant resistance or pressure in your legs could cause a clot which can be very dangerous. good luck