Need Medical Help

I am a 40 year old woman. I was diagnosed in April 2010 with water weight in my calves. She never asked about what medications I was on at all during my doctor appointment. I was on Lisinopril HCTZ 10-12.5 up until Memorial Day week when I practically begged my physician to help me. I am now on Lisinopril 10mg and Hydrochlorothiazide 25mg. It worked for a week sorta with a little less pressure on my lungs. Now, I felt pressure on my lungs on Saturday. I feel like I am drowning in my own body at 250 pounds. I have had water weight since my teens. I am on a busy public bus line which goes to and from a major city. How can I get my doctor to take me seriously? I am too young at age 40 to die from drowning in my own body due to water weight.