Pregnant and Cut my basal levels by more than half, what is going on? Long Please read though!?

I'll be 36 weeks tomorrow. Doctor says placenta and baby look fine and happy, besides the baby being 7lbs 9 oz 3 weeks ago! I've been having contraction and irritability since week 29, it never goes away. With no other complications. Recently instead of upping my basal levels and trying to keep them under control, like that which is common among third trimester pregnancy's , my blood sugars have been constantly low! The other night was the scariest when I caught it at 32, it literally dropped so fast, I didn't know it was coming. I went to bed with a blood sugar of 85, which is good, but I drank some Hawaiian punch anyway because I'm so afraid of dropping, 20 minutes later, i feel like crap and can't sleep, my sugar is 54, I drink a chocolate milk which was with the chocolate mix alone 2 Carbs plus the milk was another 22gCHO. 10 minutes later I feel like crap, my blood sugar is 32, I drank 3 1/2 12 oz gles of OJ. I woke up in the morning with a blood sugar of 47! This is really bizarre for me because since I've been diabetic for 7 years, i'm so brittle, I couldn't smell sugar without my blood sugar rising. The doctor just cut all my basal levels, at night it was 1.9 now it is 0.5 and now at 3:30am, my blood sugar was 45! It's quite sad. It's wearing me out and scaring me at the same time. I didn't even cover my 30g Dinner tonight. Has this happened to any other pregnant woman? Or anyone for that matter?