Kidney stone - 9mm. Today21th day.

20 days back i went to take a scan KUB where doc said i have 9mm calculus at VUJ. He cgave Stone 1 syrup for 10 days and Cystone for 30 days. the syrup got completed in 10 days. and Cystone i am still taking it. for past 20 days i dirink 2.1 ltr water every day after the stone was formed. today21th day. When i woke up and went urine it was ok i drink water and then i got urine in half hr i went to pee it was ok without any burn or symptoms it was white color, when i was peeing in between of pee i got a striking force pain in between of the penis and i also peed. After pee i touch the penis it was pain (Pain in the sense it was tingligh or like that idk what to say) Again i drank water (it was paining at bottom of penis and center of penis when i touch) after half hr again i got urine. This time also when peeing i got pain like pins and after peeing when i touch the penis it was normal . the 4th 5th time i go pee its ok but i feel something inside like a pin striking the flow of uri