Hi, I am 62 years old male. .In 1997, I had MI and in 2009, I had a stent. 6 days back I had allergic flue and cough. Heart beat also rose to 145. Got briefly admitted to a cardiology hospital and got discharged after one hour while normalised. Next pulmonolgist after x-ray and lung test diagnosed lung respiratory ways infection. Advised Azomax (arithromycine) and castine. For last two days i have fever bouts upto 102 deg. My usual body temp i around 97 since my child hood. After relief from fever my body temp goes down upto 95. Then cold sweets and aches in joints. Since last 2 days, I spit blood in cough. Please advise.