Q: iPhone 6 - Cant hear anything

Today, I was at a football game and it started raining really hard. I had my phone out on the phone, hung up as I was running in the rain, when i got in the car, i couldn't hear anything!

The ONLY thing I can hear is my ringer, when I so to Settings > Sounds , and use the Sound bar, I hear my ringtone, I also hear calls. I can't hear people unless it's on Speaker. So that means the Speaker is working right? I don't have my headphones atm so I don't know if headphones work, can someone please help me with this?

I can't hear Apple Music, videos, and I can't hear when my phone is dialing unless it's on Speaker.