I have/had multiple kinds of worms, strongyloides included. I have not experienced stinging, biting or pinching with any of the worms I've had.
Many have experienced these symptoms and I cannot say which worm is causing them, but I don't believe strongyloides does.
Sharkman, do you have a reference re. doxy and female worm fertility? My reading suggests that doxy may indirectly kill strongyloide larvae, but haven't read anything to indicate it effects the fertility of the female.