TMZ.com reports that POISON frontman Bret Michaels continued to make tremendous progress in his recovery this weekend after he suffered a massive brain hemorrhage, with one source close to the singer calling the whole thing nothing short of "amazing."According to TMZ.com, Bret was "very aware" and in a "good mood" this weekend during an evaluation with a specialist — and the singer was even described as "somewhat talkative." His sister Michael Sychak told CNN that Michaels was watching television at his home near Phoenix when he was stricken by an excruciating headache on the evening of April 22. "Bret's fight to stay conscious during the hemorrhage and get to the emergency room" was key to saving his life that night, said Dr. Joseph Zabramski, the head of the medical team treating Michaels. "He has an unbelievable fight in him and told me what kept him alive at the moment of the hemorrhage was that he 'did not want his family to wake up and see him lying unconscious in the middle of the floor,' " Zabramski said. His recovery is complicated by "a few roadblocks," he said. According to CNN.com, Michaels has hyponatremia, a lack of sodium in the body, which leads to seizures. He also suffers severe cranial and back pain from blood drainage, Zabramski said. An emergency appendectomy 11 days before the rupture, and his lifelong history of Type 1 diabetes are also factors slowing the recovery, the doctor said. "Bret's sheer will to live and fully recover is undeniable," Zabramski said. Zabramski and his team will talk more about Michaels' illness and recovery at a news conference at the hospital on Tuesday.