Gavin & Stacey star Sheridan unveiled her new silver pixie crop on Wednesday night but was met with some mean messages online.
We think the actress' new 'do is fabulous, but clearly not everyone recognises a stylish chop when they see one!
Sheridan retweeted one horrible comment from a follower, who simply said: "Look at the state of Sheridan Smith hahahaha!!"
She then wrote: "Thought hard about trolls & quite frankly..'f*** off!' But I'll pray for all of u that u don't go thru what certain families have to all year."
Clarifying her point, Sheridan later added: "I'm too bloody sensitive! I don't have cancer, just have short hair from shaving it. Get a grip Smith! Apologies [cyber] fam. Ashamed of my self pity X."
Sheridan's fans were quick to rally round, with many telling her that she had no reason to be ashamed.
"Nothing to be ashamed of girl! You're only human - and your haircut is gorgeous! X" one posted.
Another replied: "Try your best to ignore the trolls and focus on all the lovely tweets from your thousands of fans! :-) Sending hugs x."
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