text: i used to be a runner and would sweat up to 8 -10 lbs a day and wow it was awesome cuz i felt so thin,but i? had to stop due to knee injuries. i had to find new means of sweating to lose the water weight and feel great,it used to be hot baths or washing my car in scolding heat,and on a daily basis it felt like i ran a marathon just to look good, well nothing works lately,i've been to docs and i'm fine and healthy,but what a sress! i put on 15 pounds in a month,and cuz i have no way to sweat i'm gonna blow up, i need help,i have tried over drinking as well to flush my system out but that didn't help. i can't stand this, on top of man problems,i need someone to explain why i retain sooo much water, it causes me so much grief to work so hard every day, to sweat and only to be dehydrated and drink it all back on. i haven't sweated at all lately and now these extra pounds are harder to lose. help help keeping yourself thin thru dehydration is never a good idea. 10 lbs. of water weight is almost in the "severe" category which can have extreme negative effects on body's chemistry, potential kidney failure and much more.  if  the 15lbs weight is purely fat you need to lose it the old fashion way, low impact cardio 5-6 days a week 45 min+ , a low glycemic(sugar) and fat diet with lots of veggies and healthy fats.   use an elliptical machine,rower and high speed circuit weights to protect those knees.   if none of these help, check with nutritionist about fasting as you may have toxic bloating.