Hi, I went to the doctor 3 days ago with a sore throat and temperature. He diagnosed an abscess on my tonsil and gave me penicillin (250mg two, four times a day) for 10 days. I have since got worse. I have a temperature, really bad head ache and lower back pain. Could my other symptoms be related? I am other wise fit and healthly, no previous back problems and taking no medication. I am a female of 29 years.