Your back pain might be due to stone or may be muscular as you have not provided how the pain is Any way start drinking lots of water around 3 to 4 litres per day at least You can take pain killers along with rantac to prevent gastritis And wear tight underwear may be 1 inch less than your regular size that helps Inspite of this if you continue have similar complaints please consult your doctor

Low back pain is due to spondylitis and pain in testes due to varicocele

Kindly mention back pain and testicular pain on which side .. right or left?

U neednt worry about the renal stone or varicocele as of now...Its better u do a COLONOSCOPY to rule out the cause of ileocolitis...As the caecum and ascending colon is retroperitoneum even tat could be the cause of back pain...

Hi As the stone size is small it might pass spontaneously You need to drink lots of fluids orally Take good analgesic