Has anyone ever developed hellp syndrome while not pregnant?

Nope. Hellp syndrome is specific to pregnancy. Certainly there are liver and blood problems that may look like hellp but aren't in non-pregnant people. By definition, you have to be pregnant or recently (last 6 months) been pregnant to have hellp. For those of you that don't know, hellp is a complication of pregnancy where the blood counts get very low and the liver starts to malfunction.