Frankie Muniz, star of ‘Malcom in the Middle’, suffered a mini-stroke last week, according to TMZ. Sources tell TMZ doctors are confused about why he had a stroke in the first place.

Sources close to Frankie tell TMZ, the 26-year-old was taken to an Arizona ER on Friday when friends noticed he was “acting really weird” — having trouble speaking and understanding words — and they got freaked out.

Doctors told Frankie he had suffered a “mini-stroke” though they didn’t know what caused it. We’re told Frankie’s still awaiting test results.

Frankie’s birthday is tomorrow and his band Kingsfoil is set to begin touring on Friday — but he’s currently under doctor’s orders to take it easy.

It’s strange a 26-year-old suffering a stroke! Hope they figure out what’s going on soon!

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