Just went on Propecia and having slight testicular pain

[speedman]

I am 30 years old and my hair has started to thin rapidly in the past 1/2 year. I went to my doctor and asked him to prescribe procepia. He was hestitant and told me to use rogaine first. I tried rogaine, but my scalp is too sensitive and it gave me scalp irratation. My doctor then prescribed me procepia. I have been taking propecia for 4 days and I have noticed from day one that I would get mild pain in one of my testicles. It comes and goes throughout the day. I have read various threads in this form stating various side effects start off initially and eventually will go away from continued use or switching use from daily to every other day. I just want to know if anyone had this experience on their use of propecia and what has happened to them in the long run (i.e. it goes away or got worse).