Does L-Arginine Prescribed For Peripheral Neuropathy Have Side Effects?

I am YYYY@YYYY . I am a male 65-year-old 20-year-long type two diabetic. I have taken care of myself, l lost weight, and always felt fairly well. Recently I began to feel neuropathy in my feet. I decided to take L-Argenine for it, which has worked! Are there any secondary developments I should expect?