What's wrong with my guitar

The low e, a and d strings don't sound like they once did. They sound like they are tuned down so you can't hear them very well, but they are not. here is the story of how this might have happened. My friends came over and we started to jam out. My guitar sounded fine before they came over. But then we started to jam out in my garage and it was pretty hot because I live in El Paso Texas. After we jamed out I took my guitar back to my room and it sounded as I mentioned above. What happened? It is a Ibanez RG 270DX in case this helps

So even when you tune it up it still sounds out?

First of all, have you tried tuning using an electric tuner? If so, and it still sounds out, you probably have something wrong with your intonation. Either that, or your strings got stretched in the heat and lost their ability to hold tension.

Thanks for the advice. I changed my strings and it sounds perfect.

lmao