Kevin Smith checked in with his fans and thanked them for their well-wishes after he suffered a massive heart-attack on Sunday night.

The Clerks director revealed that he was finally released from the hospital and that he was making a massive life style change.

'Home again, home again, jiggety-jig! Home is where the heart is and the heart is feeling good!' he tweeted on Wednesday.

'It's actually getting more blood flow and oxygen than it has in a long time. So I am ALERT, to say the least! Thank you for all the kind words, folks – from Vegetarian Kev, Day 2!'

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Kevin Smith checked in with his fans on Wednesday and thanked them for their well-wishes iafter he suffered a massive heart-attack on Sunday night.

Smith (right) also defended actor Chris Pratt (left) in a Facebook Live video after the actor came under fire after tweeting that he was praying for Smith. He told his fans: 'Please don’t fight over stuff like that. It’s a waste of time'

Smith also defended actor Chris Pratt in a Facebook Live video after the actor came under fire after tweeting that he was praying for Smith.

'Poor Chris Pratt, one of my favorite actors on the planet, f*****g put up a nice tweet, where he's just like "Hey man, I don't know you that much but I love 'Clerks' and I'm praying for you" and and apparently people were like, 'F**k your prayers' and attacked him and s**t,' he said.

'And number one, thanks to Chris Pratt, how sweet was that,' he continued. 'Number two, please don’t fight over stuff like that. It’s a waste of time. Whether you’re religious or not, someone saying "I'll pray for you," it’s good intentions.'

Smith was forced to cancel the second of two stand-up shows he was filming for his show 'Kevin Smith Live!' as a result of the medical emergency.

Smith got emotional as he recalled the moment he thought he might die while suffering a massive heart attack on Sunday

The actor and director choked back tears as he described the strange feeling of calm that came over him as he thought about his family, friends and his 'weird and wonderful career'

In the 19-minute video, he recounted his experience leading up to, during, and after his heart attack, explaining that he began to feel nauseous after finishing the first of the back-to-back shows.

'I started feeling pressure on my chest — but not like, 'There's an elephant on my chest' — I just couldn't catch my breath,' he continued. 'Honestly, I was never really in pain.'

The actor and director choked back tears as he described the strange feeling of calm that came over him as he thought about his family, friends and his 'weird and wonderful career'.

'I was content,' he said in the Facebook Live video, filmed from his hospital bed. 'I didn't wanna die, don't get me wrong, but I thought if the ferry man comes tonight... what a ride it's been'.

But it took some time to convince the Clerks director that his condition was even serious, let alone a major heart attack.

Smith said he'd been at the Alex Theater in Glendale, California, filming two comedy specials on Sunday when he fell ill.

The 47-year-old had just finished the first special when he says he was hit with a wave of nausea.

'I thought I got some bad milk,' he said in the clip, laughing, 'I was honestly under the impression I got some f**king bad milk.'

It took some time to convince the Clerks director that his condition was even serious, let alone a major heart attack, he said in the Facebook Live video, filmed from his hospital bed

Survivor: Kevin Smith posted a selfie from his hospital bed, revealing to his followers on Twitter that he had survived a massive heart attack

Smith said he went to lay down in the theater but could not get comfortable. He then stated feeling a pressure on his chest.

'So because of that, and because I'm 47, I didn't piece together I was having a heart attack... even though my chest was heavy and even though my father died of age of 67 died of a massive heart attack. Even though my mother had heart problems and has two stents.

'Honestly, I thought I was just mucasy - I smoked two joints earlier in the day.'

Eventually, he agreed to call a doctor and an ambulance was called for the Jay and silent Bob Strike Back star.

Smith explained that even when the paramedics arrived, he was more embarrassed than worried, until he heard someone use the phrase 'heart attack.'

Iconic: Smith, centre, as Silent Bob, in his 2001 film Jay And Silent Bob Strike Back, along with Jason Mewes, left, as Jay, and Ben Affleck, right, as Holden McNeil

'I was like what? No, surely not.

'I never in a million years thought it was a heart attack,' he continued.

The New Jersey native, who said he'd recently lost 85lbs and was walking everyday, revealed that doctors found he had a complete blockage in one of his main arteries. He has now had a stent implanted and will have to take medication for the rest of his life.

'The Doctor who saved my life told me I had 100% blockage of my LAD artery (aka 'the Widow-Maker'),' Smith tweeted on Monday night. 'If I hadn't canceled show 2 to go to the hospital, I would've died tonight.'

'But for now, I'm still above ground,' he added.

'They literally saved my life,' he added in the video.

The 'Comic Book Men' thanked Glendale Adventist Hospital for their treatment and to all his fans for their 'incredible well-wishes… it meant the world. I sat there reading tons of it last night.'

Lucky escape: Smith (pictured in March last year) revealed that he had fallen ill after a taped stand-up performance and had been rushed to hospital

Smith is best known as the director of '90s comedy Clerks, in which he also starred as one half of the stoner duo Jay and Silent Bob.

The twosome later appeared in their own spinoff Jay And Silent Bob Strike Back in 2001 and the Clerks sequel Clerks II in 2006.

Smith also directed 1999 comedy Dogma and 2008 film Zack and Miri Make A Porno among several others.

Smith had no known health problems, but has spoken openly about his body-weight issues and being a yo-yo dieter.

In 2010, he was famously kicked off a Southwest Airlines flight for being too fat to fit in a single seat, after which he proceeded to lose 65 lbs before 'putting it all back on'.

In 2015, he revealed that he had lost 85 lbs following another weight gain.