My thoughts are shouting... What's going on? (I'm not crazy!)

It used to happen to me a lot when I was younger, but it just happened again tonight for the first time in years. I was on my computer when everything I thought, whether it was whatever I was reading, or just my internal monologue, was shouting. It was all my own thoughts, they were just shouting.

Other curious symptoms that were also going on are anything I was actually able to hear was slightly louder, and time seemed to go either a little slower or a little faster.

I'm not on any drugs or medication of any kind, and I'm not crazy - HERE is a link to another person who has this same experience as I have, and some possible explanations, but I haven't come to an official reason or title for this strange feeling.

I'm also just curious as to what Reddit's opinion of this is.

Thanks!