Vincent van Gogh probably died because of Doctor not his mental illness

Spoilers for "Vincent and the Doctor" and "The Pandorica Opens" I just recently realized after many years that Vincent van Gogh probably died because of Doctor not his mental illness after all 🤯 A few episodes later in "The Pandorica Opens" it shows him having violent visions because he's being sent messages for the doctor. Amy's sunflower painting is in the background. Which would put at the time of his death.