I Am 69 Years Old, Have Felt Lousy The Past

I am 69 years old, have felt lousy the past week. I have COPD and Asthma but am taking medication to help it. I have IBS and a couple of years ago had surgery to remove two bad sections of my colon related to diverticulitis. Lately I have had occasional pain in my sides, have a bad cough and almost feel like I have an infection somewhere in my body.