Real Housewives of Beverly Hills' alum Teddi Mellencamp opened up about dealing with debilitating migraines for six months before being diagnosed with several brain tumors.

The former 'Real Housewives of Beverly Hills' star said she thought she was "dying" before learning she had multiple tumors: "I can’t see, I can’t walk, I can’t even get out of bed."

Teddi Mellencamp appeared on her and Tamra Judge's "Two Ts in a Pod" podcast for the first time since undergoing brain tumor surgery in February. Mellencamp, 43, made her return during the Thursday, March 13,

On the March 13 episode of their 'Two Ts in a Pod' podcast, Tamra Judge recalled how Teddi Mellencamp texted that she was on her "deathbed" after being diagnosed with multiple brain tumors.

Teddi Mellencamp is opening up about her slow realization that she was suffering from brain tumors ... and she says she's had some of the saddest and darkest days since her diagnosis.