To high levels of creatine & protein in urine

I’m 39 year old and I used for 3 years on a daily basis an anti-inflammatory.  My GP did a blood and 24 hour urine test.

The blood test came back with no problems, but the Creatinine levels and Protein levels in the urine where too high.

The GP told me that my kidneys are under stress, is this correct?

My GP advised me to have a second 24 hour urine and blood test done in 5 months. Do you think that is to long to wait for a second test is quite worried?

Which levels of Creatinine and Protein in the urine is too high?

[Cindee56]

I think the anti-inflammatories could have been what did it.  I was also on them for years.  My recent kidney tests were not too good.  I think you do have to wait at least a few months to retest, at least that's what my doctor said also.