It's okay to not like concerts. It doesn't make you less of a music fan, it just means that standing in a very loud and humid room with thousands of moving bodies just isn't your thing.
Every band's performance is going to be unique to their aesthetic, musical style, and fans' general attitude. But the musicians' personal taste and touch makes a big difference. I've been to one Imagine Dragons show. It was a massive space with a shit ton of people, especially in the pit. I can totally see how it would be hell for people with certain sensory issues. Even the band agreed with that, they had ads on the stage displays directing people to noise canceling headphones and breathing space for people with sensory issues. They were very compassionate.
Accommodations exist for a reason, so feel free to ask for them and use them. And again, nothing wrong with saying that it just isn't your favorite way to enjoy music.