I have been moving and doing some hard work last 2 days....now i feel some pain at the back and some in my right testicle.. is that related?

yep. sacro-iliac problems and testicular pain often occur together. the connection is problems with gluteal muscle innervation, especially resulting piriformis and gluteus medius neurogenic weakness. both are on circulation-sex acupuncture meridian. while local innervation is primarily from l5, the cause is typically at the other end of the spine from cord pressure due to atlas subluxation (fixated misalignment). see an hio method chiropractor.

oh for gods sake im a uk gp yes youve most likely pulled a muscle in your lower spine or worse slipped a disc from over lifting or bad lifting technique and ruptured yourself is there any swelling to the top area of testicles

do you not have doctors in america my daughter insisted i do this for hour a day as most of you seem nye on brain dead or apparently cannot get access to free health care