I'm a patient of ulcerative colitis, and I eat mesacol OD.  from past few days I am suspecting that I have kidney stones because something my back aches and abdomen too, the pain is like when I make a movement and my groin is also feels like stretched and pains. (This pains comes at a time not all at once) and my penis tip has felt twice like it's on fire. I drink a lot of water but then too yesterday I got orange urine and then crystal pink urine. (The pain is not very much but yes I suspect that I have kidney stones) what should I do? Any home remedies? The urine is passing through, it haven't stopped.