The Governator is feeling much better now, RadarOnline.com has learned.

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Just days after Arnold Schwarzenegger underwent emergency open-heart surgery, the actor turned governor quoted his famous Terminator catchphrase to give an update on his health.

“It’s true: I’m back,” Schwarzenegger, 70, tweeted. “I went to sleep expecting to wake up with a small incision and woke up with a big one – but guess what? I woke up, and that’s something to be thankful for.”

As RadarOnline.com reported, the Kindergarten Cop star was at Cedars-Sinai Hospital March 29, for a catheter valve replacement, when he suffered some complications during the procedure and the valve replacement failed.

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Due to the unexpected difficulties, Schwarzenegger was rushed in for emergency open-heart surgery.

Total Recall Of Arnold Schwarzenegger’s Life In Pics

As RadarOnline.com readers know, the former Mr. Olympia has suffered a variety of heart ailments over the years. At the start of his career he even had an aortic valve replaced.

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But on Monday, he was feeling much better.

“Thank you to the doctors & nurses,” he tweeted. “And I’m truly filled with gratitude for all of the kind messages.”