It started yesterday I did some exercise and took a shower and all was good.  As I was sat chilling I started to feel a dull ache in my testicle.  The pain went it came back it went again and came back, along with a slight pain my stomache.  I didn't think anything of it as it was sever pain and there was no swelling nothing.  Now the pain has increased and I feel it more in my lower groin just above my testicles, I still have the feeling of being sick but no visual changes have occurred.  
Should I be alarmed and how do I get checked on a Sunday and also how do I get checked by a doctor when we can't go to them ?

any help would be great ! 
kind regards. 
C