Suggest Medication For Lung Infection

1 month ago I got this years flu shot at walgreens. I was in shelter with a women who had pneumonia. Soon I began to have cold symptoms, then a week into it, laryngitis. Lungs felt tight. I was in transit to my hometown and had to sleep out a few nights. Another week went by and a dime sized totally black engorged tick was swept away from my pubic area by washcloth and went down the drain. I got to where my kids live and was coughing up white (like half and half cream) out of my lungs. I went to ER room. I was told I had pneumonia and given 6 amoxicillin 500mg pills (all downed in 5 days) My blood pressure has been high for 10 years and not on medication currently. Its been hanging around 160/110. Now its been 1 month and I am still coughing...no white stuff but lots of clearing phelmy clear stuff. I was no Bullseye yet from the tick but read 50% of people don t see one. My knees and ankles (legs in general) are stiff, more than usual and I am weak and tired. Telling myself the pneumonia kicked my but. I am 62, female and the last couple of days I nearly fell over due to dizziness. Should I go back to an Emergency Room? I have no personal physician and I am on Wisconsin Poor Mans Insurance.