John Heim, who heads the Southwest Florida Clean Water Movement, was in a Lee County hospital Thursday. He said he checked himself in after being sickened by algae.
"Burning eyes, real bad stomach problems with it, you know extreme burning feeling within my throat."
Heim said he was also throwing up blood, although doctors have yet to confirm if the algae caused him to get sick.
Heim was at the Franklin Lock Monday speaking with Fox 4 when he scooped a bottle full of the gooey substance, but he did not swim in it.
He praised the county for temporarily shutting down the nearby Olga water treatment plant, but considers it a band aid on larger problem.
"And there is only one real solution, and that is buying the land south of Lake Okeechobee, and sending clean water south through the Everglades."
Though hobbled, Heim says he's still determined to see is clean water dream through the end.