Orange urine taking corn free buffered vitamin c 2500mg 1 to 2 x day

My naturopath suggested that I take 2500mg vitamin c twice a day. A couple days in my urine started coming out orange usually in the mornings. It is a bright orange and then I started to have what felt like bladder pains during urination. I was concerned so I stopped taking the vitamin c for about a week and then tried to slowly reintroduce the dosage. Within two days at 2500mg the orange urine returned. This happened with two separate brands of corn free buffered vitamin C. I'm really hoping to get the immune boosting benefits of taking vitamin c, is the orange urine a sign that it is doing harm? Should I try unbuffered vitamin c or will I have the same results? Tweet