Tori, sorry to hear about the bad side effects of the infertility treatments...I hope you see some good effects soon!
As for the blood sugar, as Ruth said it's hard for it to drop low as long as you are getting enough protein and the good carbs you're allowed in P1 (beans, legumes, bell peppers, tomatoes, milk, cheese, yogurt, etc.). Are you getting enough of those? Try making some homemade 3 bean salad, if you like that, or have some bell peppers with hummus or some tomatoes with mozzerella and basil. Okay?
Let us know how you are doing...and it wouldn't hurt to call your doctor today, even if you're feeling better. At one point on SBD, I had really low blood pressure and it caused little mini 'black outs' when I stood up from sitting or squatting to look at something on a low shelf.
It got better with time, but it was reassuring to talk with my doctor and understand what was going on.