Celebrity hairstylist Jesus Guerrero had lost 20 pounds and was complaining of chills and hot flashes leading up to his unexpected death, TMZ has learned.

Sources close to the situation tell TMZ … Jesus had been feeling sick since September last year but continued with work commitments in Dublin, Ireland, as well as in England, and Dubai, in the United Arab Emirates.

When Jesus got back to the U.S. from Dubai, he was driven to an L.A. hospital on February 21, and died the next day.

Jesus’ death was described as “sudden and unexpected” by his sister, and several A-List celebs he worked with over the years — including Kylie Jenner, Jennifer Lopez, and Katy Perry — posted emotional tributes to their friend.

Kylie herself covered the cost of transporting Jesus’ body back to his family in his hometown of Houston, Texas, and announced she’d pay for his funeral.

Jesus was 34.

Congressman Al Green — the Democrat who was escorted out of the House of Representatives for interrupting President Donald Trump‘s address to Congress Tuesday — says he’s firing back at POTUS … announcing plans to file articles of impeachment.

The Texas representative stopped by “TMZ Live” Thursday to talk about his dramatic exit from the chambers during Trump’s speech … and, he revealed he’s planning to bring the articles to combat the president’s “incivility.”

Green didn’t give a timeframe for when this filing could take place … but, he says he feels Democrats need to engage in some “righteous incivility” of their own to combat the president’s behavior.

Congressman Green says the president takes advantage of the Democratic Party’s civil nature … claiming the speech Tuesday is a perfect example of this — ’cause while Democrats sat quietly for the most part, Trump called them “lunatics” and took a viral shot at Senator Elizabeth Warren.

Of course, Green didn’t sit quietly … he stood up and actually yelled back at the prez, disputing Trump’s claim of a “mandate,” before he was escorted out of the room.

Green says he didn’t plan to speak out … but, explains he was overcome with emotion and wanted to show he was going to stand up for Medicaid. It was a costly outburst — ’cause 224 of Green’s colleagues, including 10 Dems, later voted to censure him for his actions.

President Trump is no stranger to impeachment proceedings, BTW … he was impeached twice during his first term — though both times he was ultimately acquitted by the Senate. Still, sounds like Congressman Green thinks the third time is the charm.

Gypsy Rose Blanchard says all of the letters Luigi Mangione is getting in jail will serve as a boost for the alleged murderer … but, be warned, she adds — ’cause there are lots of weirdos out there.

We caught up with Blanchard — who served seven years after she was convicted of second-degree murder in the death of her mother — at LAX Thursday … and, we asked her what it’s like to receive so much fan mail while locked up.

GRB says it’s good to buoy your spirits … but, it’s important to distinguish between people who are genuinely reaching out versus the ones who are sending letters in an attempt to get something out of you.

Just take her partner Ken Urker, Gypsy says … he sent a letter to her when she was locked up, and she could tell he was genuine. Now they have a kid together and couldn’t be happier.

Gypsy says she doesn’t have any advice about finding love behind bars for for Mangione — who is facing both state and federal charges for allegedly shooting UnitedHealthcare CEO Brian Thompson back in December.

Legions of fans have publicly expressed their support of LM … showing up in New York to cheer outside of courthouses where Mangione is going through court hearings.