hi this is muhammed from india currently resides in uk. i had a question my mouth stings for past 5 years, it got worse from past few months,my mouth soured, i have been to doctor last month he gave me penicillin VK ( phenoxymethylpenicillin ). now my mouth goes dry, my mouth stings,and my urine smells strange..are these are are symptoms of lung or kidney cancer ... thanks