Strong doubts about urine after showering

Assalam o Alaikum. Today I was taking ghusl before Friday prayer and when I did ghusl and turned off the shower, I saw Yellowish dropswater going down fron my penis.However, in my washroom,sometimes the colour of water looks like urine because of the light if i view it from different angles. The liquid dripped down my thigh and it felt warm as well. At that time,I considered it water and thought it was due to the light. I used a towel to dry myself and then put on my clothes. Later,I became worried that it really was urine as the colour was the same and felt warm against my body but I still think that the colour was due to the light. However,the warmness has been making me worried and I tried to fix the problem by washing my shalwar but not the kameez which most likely came into contact with the wetness of the shalwar.I am having a strong doubt that it was urine and that I have made so many places impure and I feel depressed. What should I do?