67 y.o. male, Hx hypertension (controlled) & A fib (rate control). Toothache being treated with second round Amoxicillin 500 mg qid x 7 days since 2 days. Onset myalgia, decreased appetite, occasional dry cough, fuzzy head, weakness x 3 days, worse day 2. Recent onset dyspnea on exertion, headache. Pulse 80, resp 24. Low grade or no fever.