Renal profile

My renal profile; Serum creatinine & Serum Urea remain close to the upper limits. It goes beyond that when I take some pain killers and also Vitamin D suppements. When I stop these, the above renal profile comes back to normal. This up & down is continuing for last many years. Should I take it that I am having Kidney disease? At my age taking Vitamin D is essential to maintain proper Calcium level but I hesitate to do so as it results in increase of Renal readings.

[jimgreg]

vitamin d  can cause the kidneys to go toxic..meaning they dont flush it out..same with too much  calcium..but they also show up in  blood serem reff..like a big man would have a higher creatine then a smaller man cuz of musles  =  creatine in the blood..you may have ckd ask your doc..cuz at higher levels of  creatine,bun urea leveles are showed at higher levels in blood serem when the kidneys aren't fuchioning correct..but like the creatine mine is 1.0 reff range  0.6-1.2...so if your creatine is above 1.8  then theres a problem..but i think you need to have your  doc  told this asap in case you have ckd..also  renal can be from difft things thats why ur doc needs to know all this..to get a propper diagnosis