Lupron and grocery store

I am 27 years old and have just recently completed six months of lupron. I had my last shot in January 2006. The treatment was for endometriosis. I had been in pain for over 10 years when I finally had a laporoscopy to diagnose the endo. I also experienced "mild" side effects from the lupron. But, let me state first that I CANNOT take any sort of hormonal birth control because of the estrogen. Everytime I have tried BC I have had mini strokes. During my pregnancy I also had a mini stroke due to the increase in estrogen.
While on the lupron, I actually felt better than I have felt in a long time. I had the occassional hot flashes, night sweats, and a lot of weight gain. I gained around 25 pounds in four months. I don't recall any other severe side effects. However, I was also on Elavil (anti-depressant) the entire treatment. So I'm not sure if that helped or not. My problem is that now after being off of lupron, I am having horrible feelings of nausea, dizziness, fatigue and horrible headaches. I went to the doctor today because of an excrutiating headache I have had for three days now. It is a weird headache. It only hurts in one spot on the top right side of my head and hurts when I move my head quickly or move my eyes. The doctor did blood work to check my thyroid and has scheduled a CT scan for next week.
Has anyone ever experienced severe side effects after completing lupron? I am wondering if it is the estrogen coming back. Am I better off to be on the lupron? If anyone has any comments or suggestions, please reply.