"But I'm going to be ok thanks to Rosa Estrada and the doctors who knew how to fix the blockage without surgery.
"Also, AMC and SONYs support and help throughout this has been next-level. I'm going to take a beat to recover but I'll be back soon." (sic)
Bob's comments come just hours after his friend David Cross also took to social media to insist the actor was "doing really well".
He had said: "Just got off the phone with Bob and he's doing great! Joking and japing and joshing. Both he and his family are overwhelmed with the outpouring of love and concern everyone has shown. You will be hearing from him soon. But he's doing really well!!"(sic)
The star collapsed in New Mexico on the set of the TV show.
His representatives said: "We can confirm Bob is in stable condition after experiencing a heart-related incident. He and his family would like to express gratitude for the incredible doctors and nurses looking after him, as well as his cast, crew and producers who have stayed by his side.
"The Odenkirks would also like to thank everyone for the outpouring of well wishes and ask for their privacy at this time as Bob works on his recovery."