please get to a specialist ASAP!
I have not taken the depo lupron if that is the one you took...but I do know it causes LOTS of nasty side effects and won't do much more then alleviate the symptoms of endo until you are done taking it then the endometriosis will come back...
It does say in the side effects of this drug "For nausea (and a whole list of other nasty side effects) call your Dr.
I would suggest you find yourself an endometriosis excision specialist before too much damage is done by a dr. who is obviously NOT qualified to manage your disease...get a copy of your medical records and let a specialist review them...most do this for free so it's worth doing!
I do hope the nasty symptoms pass quickly and I would take this as a sign to NOT continue with this drug therapy! Good luck as this is a long hard road in the hands of a unqualified dr. managing this disease!