Please help, so much pain!!!

For the past few weeks, I have been experiencing really severe pains in my abdomen, like stabbing, sharp pains that aren't to the point where I have to shut down but I definitely cant function at my normal 100%. And it only occurs at a specific time during the day. When i go to lunch, i feel the waves of nausea come up and I get food and then don't feel like eating and if I do, then the stomach pains will come up. It also can give me dull pains in mh back and even make my chest area right under my bra wire hurt like there is trapped air. I guess the pain overall feels like gas and it hurts really bad but theres no gas coming out . Sometimes I can deal and times like this evening, I can't because it's so terrible. I'm not pregnant, I don't think I'm too stressed, my period isn't coming, and normally I can chow down but lately that isn't the case. I also tend to not eat breakfast because the same thing happens when I eat breakfast and that makes the start of my day inpossible. I am not looking for any diagnoses or anything but had anyone ever experienced this and how did you deal with it?