I have been taking Keflex, 500mg, for about 4 days now, in that t...

I have been taking Keflex, 500mg, for about 4 days now, in that time I have since developed a lack of appetite, I have lost my job, my roommate stole my favorite shoes and walked through puddles, my normal sure handedness has disappeared resulting in me dropping 4 eggs on the kitchen floor, my toes are swelling to the point that flip flops are not an option... AND coke tastes like Pepsi... All of this to treat a sinus infection. I will never take this medicine again.