zoladex injection

I have been advised to go to the zoladex injections for 4 mths as i suffer with extrem pain for 3 weeks out the 28 day cycle.a week before my period, the week i am on and the week after the period stopped. I had a P.E left lung in May 2oo2 and i am very worried about taking this form of medication but the doctor said i had to try something before they would consider a full hysterectomy or they might do the micro waveing of the womb first, i know every thing i do will increase the chance of having more blood clots but i can not live like this for another 20+ years.

i am currently 34 years old and have three children all were a normal birth, i was told the pains  would go away once i havd given birth, this has been going on since i was 14/15 years old. sex is very painfull at times and it feels like something is stabbing red hot needles into my left side of  my pelvic area, i have had swobes done for infections and are currenty awaiting the results althought i have been with my partner for 6 years and neither of us have strayed.

I am also allegic to latex and had the depo injection which after 2 weeks of having a dose and a half after the vile shattered i had the P.E. i have been sterilized when my youngest was born in 2004.

 The doctor i saw spent nearly an hour trying to make me have things i didn't want because i was told when i had the P.E i was not to have any form of the pill or the pepo injection ever again as this could lead me to have another P.E or blood clot that might kill me the next time. he ran out of ideas and had to go and ask his boss what to do with me i came away very unhappy with his advice and i have heard this injection could give you trouble with your lungs, my left side is still deflated from the P.E in 2002 only the bottom half now, most of it came back.Please could you offer me some advice as i really dont know what to do if i dont take it they may not do the operation for me. i wanted to have the hysterectomy done asap because my life is a constant battle with the pain and tablets which dont work.