What Happened To Every Version Of The Hulk?

One of few Hulks not created by direct exposure to radiation, She-Hulk was created when Jennifer Walters - Bruce Banner's cousin - was shot and left in a life-threatening condition. With no alternative, Bruce was forced to use his own blood in a transfusion to save her life, which succeeded, but also bestowed her with the same ability to transform into a hulking beast.

Because Walters lacks the childhood trauma of her cousin, she is notably able to retain total control over herself while in Hulk form, instead of it being a separate identity within her consciousness.

This said, she has recently been imbued with extra gamma radiation by a Celestial, which has caused her Hulk form to become far more difficult to control - although also far more badass.