Blood test question

Hello friends!
I have another question:
For more than a week now I have been taking acyclovir, 3 * 800, two days ago there were pains in the lower back in and in the legs and legs a little heavy, I also take 3 * 500 lysine per day and oregano oil.
I am afraid that the load on the kidneys is very high.
A month ago, I did tests and these were the results:
Creatinine 1.04 (norm 0.67-1.17)
Urea 42 (norm 17-43)
EGFR 91 / 1.73 (the norm is above 60)
Is it worth asking for another check or is everything okay?
I take acyclovir without a doctor's prescription and don't really want to tell him about it.
Many doctors write that it is impossible to take large doses of lysine for more than six months, because there will be a shortage of arginine and this is also bad for health.