Mine is always neon yellow. I take alot of vitamins. I recently added a few new vitamins and it made it brighter than ever. Your body excretes the vitamins it don't need, so maybe that's the reason urine turns color yellow (?). I would check with the doc also though. I'm not on tx yet, though.
From your story it sounds like dehydration, or as Forsee says, a vitamin thing. The color you don't want to see is dark brown. Always call your doctor when in doubt.
Im no doc so of course consult with them, but do you take Vitamins? B's or C's to be exact? And of course, if I don't drink enough water my pee is pretty colorful...let us know what you find out....
I'd say up your water intake, because your body is used to being really hydrated. And if it is still that color see doctor.
If it isn't one thing it's another! How nerve wracking for you. Maybe drink more water and see if that helps? If it was me I'd call the Heptologist before I called the primary because you are done with treatment however you are still under the Hep's care until your post PCR. Maybe he can run a PCR for you now and do a urine test for you? My urine was never "dark" brown or tea oolored just very dark yellow ( but not neon yelow)before treating and also right after I relapsed. Forsee might have something in her suggestion, some vitamins do alter urine color as do some foods. Please let us know what you find out.