Keep very careful track of your fluid gain by weighing yourself each and every day in the AM, before eating or drinking anything and w/o clothing. And write this down in a small journal. This will give you a reference to consult when fluid starts to develop. I have a small notebook just for this purpose for Joe. We've been tracking his weight each day for several years. I write in it each day, his weight and temp. and also any med changes that happened that day, or other significant medical problems.
It's a simple thing, but you'd be surprised at how much information this simple act can generate. I can look back at the past and see what was done and the results of what were done.
His weight gain limit is 2 pounds overnight. Then he has to start additional diuretics. Once it gets to three pounds, it becomes difficult to get rid of. He has his labs checked out every two weeks. This includes a full metabolic panel and bloodwork.
Joe has many other problems you probably don't have. He is on massive amounts of diuretics, and has to be there, or he will get into serious trouble with CHF. The contributing factors for him are his own heart abnormalities, PH, CHF, congested liver (cardiac cirrhosis), hemolytic anemia and restrictive/constrictive heart disease.
People with PH have a more difficult time with fluid than ordinary CHF people.
Keeping to a diet extremely low in sodium has helped Joe to stay in this world. And without that, he would have even more serious fluid problems, and would end up n the hospital. His fluid restriction is about 8 cups per day.
Don't want to scare anyone, but if I can keep even one person from having severe issues, it would make me happy.
So far, we have been able to manage Joe's problems with strict adherence to his regimen. Don't know what the future holds. But for now it is working.
So do take care when changing your diuretics. And discuss that with your doctor. It's tricky stuff at best even w/o PH.
One more thing, fluid can accumulate in the stomach area as well, especially with right sided heart failure. This is ascites. If you carry additional weight there, it might be difficult to determine, but you could keep track of that by doing a girth measurement every day and writing that in your notebook. Ascites is tough stuff. It can congest the liver, spleen and cause lack of appetite. Joe has ascites when his CHF is out of control and it causes much trouble and is always reflected in his labs.