How to relieve gas

Seriously guys. All day since lunch I have been having an iffy stomach. I thought maybe it was the McDonalds I had, but it's mostly just bad gas. A couple of times I have tried to go to the bathroom (because I felt like I needed to in a bad way) but there is nothing at all.

This gas me so bloated too and making me think I am feeling things that I don't actually think (the symptom spotting is a struggle). I am wondering if maybe the antibiotic I am on has me constipated and that's why I am in this issue. I just want some relief 😡