I am a 51 year old healthy muscular white male. My last 2 blood tests demonstrated an eGFR of 59. I had 7.7 g of total protein per dl. My creat was 1.37 mg/dl and my BUN/creat ration was 17. I have borderline hypertension (averaging 128/88, no antihypertensives), non diabetic (Hba1c=5.6), with chronically elevated creatine kinase (380U/L) of unknown etiology. I workout with weights every other day and perform cardio on alternating days. I do pre and post-workout supplements and try to maintain a healthy high protein diet.

Should I be overly concerned? Should I change my diet/supplements? Please educate me, much appreciated. Thank you!