My testicular problem

well testicular softness can occur for a number of reasons and is nothing to get depressed over. firs off how old are you? when did you notice them not being as firm as they once were? has your sexual life changes at all (not masturbating or haveing sex as often/or more than you use to) also what is the climate like where you run and how often do you run.how far? finally do you wear any type of supportive underwhere such as spandex or a jock strap?

thanks

Well I'm 22.... and I am still a virgin.... I run for about 2-3 mile a day.... and I also play soccer sometimes.... earlier I used to play in tight underwear but now I hv been using a supporter as well for almost 2-3 years.... while masturbating and ejaculating I get proper erection and the ejaculation doesn't look bad either.... but the testicles don't feel hard that much and I feel they look a bit smaller then before.... I didn't have the courage to check with doctor until now.... the climate is nearly 30C when I run usually.... I found similar topics being discussed on this forum and I need proper guidance. I feel tensed all the time..... My fats are quite unstable.... if I don't excercise I gain weight easily in a month or 2..... so I need some form of excercising.... but this thing puts me off from doing it.... please help!!!!
I can say I have never felt problem in masturbating or ejaculation......