BAKERSFIELD, Calif. — The six-week-old calf making his millions of fans LOL on social media is fighting for his life, according to Chug's owner, Jerry Garcia.

Garcia told 23ABC on Tuesday that Chug was feeling under the weather and couldn't do an on-camera interview. On Wednesday, a veterinarian told Garcia that Chug is suffering from possible pneumonia symptoms.

Unlike other calves who modestly take sips of their milk, Chug went viral for his unique way of diving right in, inserting his entire head into a bucket full of milk!

This is a developing story and we will update you as more information comes in.