At her performances, singer Maggie Rogers claims she notices more patrons collapsing and experiencing panic attacks.
The American artist thinks it's down to people being away from crowds and concerts for so long because of the coronavirus pandemic.
She urged her followers on Instagram to drink plenty of water and take care of those around them.
Angie McMillan, an anxiety therapist, isn't surprised that some people may experience difficulties as they adjust to going out again.
She claims that she is noticing it more frequently in her counseling work.
She tells Newsbeat, "I think the lockdowns created a situation where people were at home, they weren't around many people.".
"When accessing things like loud noises or music, there was a lot of fear and anxiety around being in contact with other people. ".
Performing live "may not be the most natural space after the couple years we've spent in the pandemic," according to singer-songwriter Maggie in an Instagram post.
For some people, Covid might seem like a distant memory, but according to Angie, we are only now beginning to understand what transpired.
We were unable to dance in front of other people or sing along to our favorite songs, the woman claims.
And I believe that for some people, it still may come as a bit of a shock and a surprise. ".
Sam Parsons is someone who has experienced what it's like to have to consider attending a gig for the first time in a very long time.
The 21-year-old shared a TikTok video as she prepared to attend her first concert since she was sixteen years old.
"The main difference between now and when I was 16 is that I now know I'm autistic and that brings a whole load of sensory issues," she says.
I'm small, so when I attend a concert with a standing-only area, I find it very uncomfortable because I can't see over people's shoulders.
"And when I am already anxious about being in a crowd of people, feeling boxed in and not being able to see anything but people around you, it's really scary. ".
Sam also says she has to think about the fact that she's extra sensitive to noise.
"Whereas the music itself will calm me down, they are big industrial speakers with frequencies that I can hear but neurotypical people might not be able to hear," she says.
She says she will be taking her sensory overload earplugs which minimise the higher pitched sounds.
In her Insta post, Maggie offers advice to her fans about keeping safe at her gigs - including staying hydrated and taking breaks from standing.
Angie also has advice for people who are still getting used to going out regularly.
"I think one of the first things I say to people is just do things at your own pace," she says.
"Just because your friends are going out every day or doing loads of stuff, it doesn't mean you have to do it at the same pace as them. ".
She has also has some top tips for people who might be struggling with anxiety at gigs:.
- Make a connection - Let people know you're feeling a bit strange. That can be as simple as grabbing on to a friend's arm so you've got contact with someone else.
- Breathe slowly - One of the first things that changes is your ability to breathe deeply or in a normal way. Making your out breath a little bit longer starts to calm things down.
- Distraction - Pick a colour to focus your attention on and scan around to focus on anything that colour. You could also pay attention to a smell or focus on the music.
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