I feel pain in left testie and left leg ..its all begun from suddenly at night what i do the pain is not blunt but there is pain?

Here are some ...: For such sudden pain, I would advise to seek urgent attention so to know what is going on while the event is fresh. Clinically, I would make sure of no testicular torsion or hernia or epididymitis. Largely, differential Dx can be achieved by analyzing the onset, degree, duration, and progress of the pain and associated symptoms over time + proper physicals + tests as needed. So, go to see Doc.