Hi. Read and understood your history of consuming the Lucozade sports drinks and stated to have sore throat, sweating, chills and feeling faint. Yes, such a large consumption can cause such problems. I would advise you to consult a Doctor to have clinical evaluation, examination and more importantly the investigations related to the blood and urine, kidney functions in particular as these drinks are known to cause kidney problems too. Whatever the reasons you need to start taking an active treatment with antibiotics and other medicines as per the investigations reports too. Take bed rest. Follow the advise of your Doctor and most important of all is not to have these and such drinks in future, as they can have bigger and life threatening problems.