I returned from a week in the DR April 9 with what I thought was a spider bite on my arm. It got much worse and turned out to be a streptococcal infection. I have had a tetanus shot and have been on amoxicillin for 7 days now, arm is much better, no raw spots or weeping. I have had a continuous headache for 5 days, sometimes severe, wooziness and can t remember things. Temperature started four days ago, fluctuating up and down, as high as 28.4° c, with chills the last two days. Bloodwork came back good, white count normal. What might be the cause?