Teddi Mellencamp‘s brain is covered in tumors … and, doctors are working quickly to remove the biggest ones, she revealed Wednesday.

The reality television star shared the news in a simple black-and-white text post … telling her millions of followers she’s been out of commission the last few weeks due to a series of debilitating headaches.

Mellencamp was fighting through them until Tuesday, she says … when the pain forced her to go to the hospital. Doctors then administered a CT scan and an MRI — and, Teddi says they found multiple tumors on her brain, which her doctors think have been growing for months.

The former ‘Real Housewives of Beverly Hills’ mainstay, and daughter of rocker John Mellencamp, says she’s having surgery today to remove the two biggest — but, the smaller ones will be dealt with via radiation further down the line.

Mellencamp ends her message by saying she’s grateful for all the healthcare professionals working to help her get better … and, to all her fans who are offering support.

BTW … Mellencamp also shared a clip where she’s being prepped for surgery — shaving off her hair so doctors can cut into her skull.

Worth noting, Mellencamp’s dealt with cancer before. Just last week, Teddi shared a photo of a huge cut on her back — explaining she started to develop little sunspots years ago, and she ultimately needed to have numerous surgeries to attack the melanoma.

A fighter jet crashed in San Diego Wednesday … and, video captured the plane coming down to the earth in a shocking freefall.

Check out the viral video of a two-seat EA-18G Growler plummeting out of the sky … appearing in a flash before disappearing behind some buildings … and, authorities say the ship crashed into the ocean.

According to San Diego Fire-Rescue, the two pilots in the small craft ejected before it hit the San Diego Bay … and, the Coast Guard says a fishing vessel rescued them shortly after the incident.

Coast Guard Petty Officer Christopher Sappey tells TMZ … the Navy jet is down in the harbor. We’re told the Coast Guard didn’t assist in rescue efforts, but they are enforcing a safety zone around the crash site.

Of course, airplane safety is on everyone’s minds these days after a Black Hawk helicopter collided with the side of an American Airlines flight, killing 67 people two weeks ago.

It’s still unclear what caused that crash … though Donald Trump and other conservatives have implied diversity hiring may have caused the tragedy.

Since that D.C. crash, a plane in Philadelphia went down — and two planes in Seattle collided too. Even celebs are being affected by the crashes — ’cause Mötley Crüe singer Vince Neil‘s girlfriend survived a brutal crash in Arizona.

Kanye West‘s biggest haters and supporters are waging a merchandise war in a global online marketplace … and it’s all been set off by his controversial swastika shirt.

The messy scene is playing out right now on Etsy, where the anti-Kanye crowd is giving Ye the finger with some new gear … while his stans are combining his name with a hate symbol, and slapping it on merch.

The deepfake video showing celebs wearing shirts emblazoned with a Jewish Star of David drawn on the back of a hand giving the bird to “Kanye” is providing some inspiration here … someone took the idea and ran with it, copying the shirt from the A.I. video and hawking it online.

Looks like a couple sellers had the same idea … though at two different price points … and there’s at least a couple dozen shoppers snatching up the anti-Kanye merch.

Meanwhile, a designer combined the word “Ye” with a swastika for a new shirt … though they’re trying to distance the design from Nazism.

The description says … “This T-Shirt is in no way intended to promote violence or antisemitism. This artwork is inspired by a ancient symbol in Hinduism that represents well-being, prosperity, and good fortune. It’s a sacred symbol in Hinduism, Buddhism, Jainism, and Odinism. an ancient symbol in the form of an equal-armed cross with each arm continued at a right angle, used especially in South Asia as a symbol of good luck or spirituality.”

Kanye started all this with his Super Bowl commercial, which linked to his Yeezy website … where the only item for sale was a $20 white shirt with a black swastika.