Thank you everyone for your nice comments
My EQ6 is fine Narayan, i disassembled the mount as soon as i got home and found nothing wrong with the worm or teeth, i only noticed that the adjustment nut for the worm adjustment was very loose and that could have been the noise we all heard on the tennis court.
Eg: worm just rattling on the teeth.
All fixed up now and the mount works better than ever after adjusting it.