I'm worried about some aches in the lower part of my body. I had a bit of an ache in my lower back and kidney area about three weeks ago which I went to see the doctor about. I thought it might be a urinary infection but they did a urine test and couldn't find anything. They said it might just be some back pain and to come back if it didn't get any better. I gave it about a week and went back. The back pain seems to have largely disappeared but there now seems to be an occasional dull, heavy ache in the testicles area. It's not noticeable when I'm lying or sitting down, just when I stand up. Therefore, it seems fine in the morning but then, after a while, when I've got out of bed it seems to come on. It's not constant either, it seems to come and go. The doctor has booked me in for a blood test and an ultrasound scan. I'm a bit worried. I know it could be lots of things but, being a bit of a health worrier, my mind automatically thinks about the worse case scenario. There's no discomfort with urination or anything and I can't feel anything in the testicles area that feels like a lump.