For a week now my feet have been so swollen I can't even get my shoes on. I have sever osteo arthritis. They now for past 2 days feel like I'm walking on marbles.it also feels as if something is crushing my toes. I do take lasix 20mg I have dbled the dose and no difference. I have elevated,ice and heat. Should I be worried.? My right foot is and has been the most swollen.