I've been the same since about 33 weeks (I'm now 35wks) - been in constant contact with the diabetic team about it. Baby is totally fine, placenta has a few calcifications on it but nothing major. I feel totally exhausted from all the hypos (I'd have at least 2 a day even though I'm constantly taking down my basal rates on my pump.) The obs. isn't too happy that my insulin levels are dropping so much, so I just check my bloods constantly with my libre sensor and finger prick, write everything down - even how long it takes for a hypo to come up - and tell my diabetic Midwife everything. It can feel a bit scary though! But as long as baby is OK, I'm happy enough.