i very much doubt that this is a "new" injury, as winning the lottery once is great, but twice is pretty unheard of.

i think that maybe the way you are moving because of the sciatica is putting undue load and pressure onto different bits ie your hip / groin.

you need to get an Wikipedia reference-linkMRI not xray of your back to firm up your diagnosis and get some good treatment pronto.

cheers

sixphysio