Heart arythmia symptoms and conditions

I have experienced an allergic reaction to Levofloxacin:
face swelled up, strong heart arythmia, throat was closing and about 24 hrs later my skin burnt leaving a dark necrotyzed patch that fortunately turned normal after a couple of days. After more than 1 year my body seems to react to any kind of medicine that i used to bare, even if taken in small quantaties. I suffer of liver pain if i eat food containing a bit of fat, regular stomach pains and now suffer of arythmia. I have a child and am scared that i couldt pass on any kind of consequence on a second one.

Levauin was prescribed for me as an anti-diarrheal when I received my yellow fever vacinnation for a trip to Nigera. On my third day in Abuja I took one 500mg tablet because I was experiencing gas. Within a few hours I experienced such extreme heart arythmia and tachtycardia that I thought I might die. This has continued for three weeks, in addition to severe lower back pains. There was absolutely no need for me to have received such a powerful and potentially fatal medication when an over the counter would have been sufficient. I have made an appointment with my primary care physician because my distress continues.