Hello The main problem is ANKLE swelling and pain in foot and fingers . E CH O & PFT normal , kidney function tests are also normal , in spite of this there is problem. One thing you mentioned in your query that your father got an attack of asthma ( although he is not a patient of asthma in past ) .He is not a diabetic . Ankle swelling , pain , asthmatic attack ( according to you) but in my opinion this was not an attack of asthma , rather it was DYSPONEA ( PAROXYMAL NOCTURAL ) . In my opinion your father may be a patient of congestive heart failure ( very early stage ) , as you mentioned that systolic dysfunction grade 1 also present . Diagnosis can be confirmed by consultation with a physician as there are certain parameters which decide about C H F. 2nd& others reason of ankle edema may be due to varicose veins ,cyclic edema or gravitational effects but in patients with these conditions , there is no jugular venous hyper tension at rest with pressure over the abdomen. While it is common in C H F . My only aim was to high light these points so that you can understand all the things regarding CHF & ankle edema. Other reasons are anemia , hypoproteinemia . In my opinion consult a physician and get his opinion as physical examination as well clinical examination is very important in your father case. Good luck.