Anyone have HELLP before?

I'm 35 weeks tomorrow. I have low platelets (114,000) (to be expected kind of, had them last pregnancy), but also now a 3-day-long low-to-moderate headache despite some Tylenol and tons of water, nausea, loss of appetite, shakiness and fatigue.

My blood pressure was fine on Monday and today, even on the low side. No temperature, so most likely not sick. No swelling or vision changes.

I called the nurse line at the OB but just wondering what your experience what like...

ETA: Monday I was at the OB for standard appt, so BP & urine were fine then. Today (Thurs) I had my school nurse check my BP.