High Creatinine Serum and Foamy Urine (Blood test results included)

[bimmersmokessupra]

I am 21 years old male. I have been witnessing Foamy urine for about 2 months.I drink a lot of water and when i do, my urine is clear with little to no foams. When I pee out all the water and in my next trip to bathroom, my urine is very foamy, cloudy but the bubbles disappear in less than a minute. I do not feel any pain or discomfort while urinating.
I stopped by the clinic a month ago and had a Urinalyses done which was normal and it was also negative for protein and no infection was found. Recently, I had another trip to the clinic in which I had another Urinalyses and Blood test. The urinalyses was all normal once again and no protein was found. I got a call from the nurse the next day and she said that my BUN (Blood Urea Nitrogen) is normal; blood glucose is normal;however, my creatinine serum is slightly elevated. Creatinine came out to be 1.48 mg/dl. My doctor told me to get tested again in 6 weeks to see if it is reduced.  
Please note that I am a heavy weight lifter.  I have been practicing bodybuilding for about 4 years; therefore, i also have a higher protein intake than an average person. In the past, I have taken and cycled creatine monohydrate supplement. I got off my creatine cycle 2 weeks ago. Could my elevated creatinine serum be because of creatine monohyrate supplement that I was taking 2 weeks ago? Do i most likely have an kidney damage of any sort?

I have tendency to get paranoid all the time and I do not have peace of mind. Waiting 6 weeks for another test is like going through hell. Should i be worried at all? Please take a look at my lab results.

Any advice would be helpfull and appreciated. Thanks

Description                               Result                 Range
Creatinine, serum                      1.48                    0.76 - 1.27
BUN                                         25                       5 - 26
BUN/Creatinine Ratio                 17                       8 - 27