Hello Thanks for posting here. The symptoms you have mentioned can be caused by pleurisy. Pleurisy is a infection of the outer covering of the lungs called the pleura. It can cause pain along the ribs increasing on deep breathing, fever, breathing difficulty and cough. It takes about two weeks to be cured hence you may feel weak and dizzy. Another reson here may be due to antibiotics. Some people do not tolerate antibiotics and have dizziness after antibiotic use. So keep taking the medications you have been prescribed and if you dont feel fine after three more days (total 5 days on antibiotics, you must viait your doctor and get your antibiotics changed. At this point of time just two days after pleurisy, you need not be worried. Just give your body and antibiotics time to fight. wishing you good health Regards