My father is 80 yrs has breathing problems he is feeling sleepy all the time since the past 5 days, this is progressively increasing, he has had all tests done other than lungs problem all his test are clear.He has a bit of swelling on his right eye and foot. He had been prescribed and is taking Daflon for swelling, Modalert - 200mg, sindopa plus 200mg, Ostoblast and Alegra. Please advise !!