Pain in left testicle.

Hi.
First of all, thanks in advance for reading this long post and answering my questions! 

Ok, here’s the deal. It’s been a month now since I’ve been feeling a dull ache and sometimes pain in my left testicle. Often times the pain will shoot through my left leg and groin. Sometimes, after running or doing some activity, the pain can increase and become constant. There are also times were I have no pain at all.

A few weeks ago, I went to the doctor to get it checked and he immediately scheduled me for an ultrasound. The ultrasound was pretty thorough. It lasted approximately 15 minutes. After the ultrasound was done, I was sent back to the doctor’s office where he diagnosed me with a Hydrocele. He said hydroceles are caused when the tubes through which the testicles descend don’t close properly and fluid leaks to the testicles. He prescribed me some antibiotics as well as painkillers for the pain, and told me to schedule an appointment with an urologist. He mentioned nothing about a tumor, or a possibility of TC, just that I should schedule an appointment with an urologist to get my testicles checked.

I didn’t buy the antibiotics or the painkillers because I was short on money at the time. I did make an appointment with an urologist, but the closest they could schedule it was like 3 months from now.

I did some more research on the internet about hydroceles and was happy to find out hydroceles are not dangerous, but not so happy to read they can be caused by a tumor. Also, what the doctor told me could be a possible cause every reputable website I consulted only listed said cause for pediatric hydrocele, never for hydroceles in adults.

I still get the dull aches and pain, with varying degrees, but I noticed today my left testicle feels harder than the right one. Not sure what word to use (whether slightly or significantly) all I know is that it is enough to be noticeable.

A few websites I consulted listed this as a sign of TC, and that got me worried again. On one hand, if there had been a tumor the doctor would have seen it and would have told me about it. From what I’ve heard, ultrasounds are pretty accurate when used for these purposes. I also did a testicular exam on myself searching for hard lumps and, from what I could feel, I didn’t find any. My left testicle is also not any larger or smaller, and there are no other visible abnormalities. On the other hand, now that I think about it, the whole process was fairly quick. It took less than 1 hour for the doctor to see my ultrasound and diagnose me with the hydrocele. I‘ve read other people report it usually takes a few days from the time the ultrasound is performed to the time the results are out.

Well, that’s all I guess. I want to know how worried should I be or whether any of you know any other reason one testicle would become harder than the other.

Thanks!