bronchitis
"Day 1: bitter taste in my mouth after taking the first 500mg at night. Nauseous. Took it after a meal, then I felt sick after. Was able to sleep ok. 
Day 2: small rashes on my hand, legs, and neck. Not too many but still, they are rashes. Nauseous. Couldn't sleep at night. This was the first day of doing morning and night 500mg each. Coughed a bit in a span of one hour. Normally I cough for 2 hours when I haven't taken the antibiotics. Sleep was ok. 
Day 3: rashes, fast heart beat, shivering, feeling sick, feeling hot like having low grade fever, it is 247am and I am up. Feeling tired, my upper back hurts. Coughed a lot from 830pm-1230am. Fell asleep for a few minutes but woke up to the feeling of losing breath. Must be an allergic reaction"