Hi your reports seems to be normal, u dont need to think too much, having creatinine 1 is normal, it not on high normal, neither there is any term called high normal and a single blood report neither conclude anything. But if still u worry about it seems like some one with little knowledge had feed u or some google thing than in that case repeat ur blood test at 3-6 months on regular basis that will clear ur doubts as well as these trend will also help in making something conclusive, hope u can understand my point