I masterbated by thigh squzzing.i didn't have the feel so it took time to eject.after that i started to feel pain in my testics and the left testics started to hang lower.the untrasonography was normal but it doesn't feel well.what should i do now??

Depending on the pain level and how long the pain lasts, you may need to revisit the Dr. Typically testicular bruising will have initial pain which goes away over 3-5 days depending on the severity. If your pain has not reduced over this time, you should be seen again to reassess. The normal ultrasound ruled out more severe problems.

You probably squashed your testicles during this and caused a little blunt trauma which will gradually subside . Wear a support underwear, take Ibuprofen for a few days and change your technique.