The positive ANA suggests an autoimmune process occurring in your body. It is a very non-specific investigation though.
The pain in feet
, fingertips could be due to the autoimmune process by itself. You need further investigations in the form of RA factor and other Rheumatologic markers.
Are you on lasix
because of high blood pressure
problem? If so, your blood pressure should be well within normal limits. If you are overweight
, please reduce your weight.
Foot end elevation will help you in reducing the swelling. Continue to take Lasix.
I hope this information gets you to somewhere if not anywhere.
I wish you quick recovery.