I had Preecampsia (spelling?), after I delivered my daughter. To our knowledge, this was NOT present during my pregancy. Appx. 5 days after delivery, my blood pressure went up, headaches, dizziness etc.., so I called my OB/GYN and was seen that same day. My liver enzymes were very high and I was admitted to the hospital immediately. I was NOT allowed in the maternity floor b/c I had already been released, so they put me on the cardiac floor. I was given pitocin (again spelling?), and some other meds...and stayed for three days. Went home on blood pressure meds, which left me feeling strange - dry mouth, dizziness etc.. but after 6 months I was weaned off those meds too. I never had a seizure, the Doctor's monitored me well and once my blood pressure was out of "danger" I was sent home from the hospital. Trust your doctors that they are monitoring you closely and the BP meds. I too, was told it normally rids itself by delivery, but it certainly didn't in my case. It was very scary for me and my family. Not to mention the separation from my newborn threw me into Post Partum Depression (I had other risk factors for PPD also). I hope you find comfort in knowing this can happen and you'll be alright.
Also, a very good friend of mine had her first daughter a few month's ago and had HELLP. She was induced and kept in the hospital for a few extra days but is perfectly healthy now!
Does this help??
Good luck sweetie.