Buell is documenting his struggles with the disease on his Facebook page, telling fans last week that he had been in the hospital and was preparing to relocate the headquarters of the Paranormal Research Society (PRS), the organization he founded, to Raleigh, N.C.
"Thank you all for your continued prayers and well-wishes," Buell posted. "I won't lie, I have been in and out of the hospital all week. ... There are days where I hardly have strength to move, but I sometimes hear chants in the back of my head; cheers, telling me to get up and rise. And that keeps me going every day! God bless you all!"
Buell was hospitalized due to complications with his kidneys and underwent a successful medical procedure this week, according to a post from a PRS staffer on his page. As of Tuesday, he was reportedly at home resting comfortably.
Buell has been speaking publicly about his illness since June, when he posted a picture of himself holding a Captain America shirt with the caption "CANCER: Even the greatest of heroes have to take the fight within. Soldier on!"
"I know there are many of you suffering from illnesses, and not just cancer," Buell wrote. "I say to all of you: SOLDIER ON! I know the pain that you will feel. And the pain for treatment. I still say SOLDIER ON! Let's think of one another during those moments, even though we don't know each other."