I'm 22 and have been dealing with gas problems for the past few days. I was admitted to the hospital for similar issues before. Today, since this morning, I've had this sharp pain in the center of my chest. It gets worse when I breathe, sit, or stand up. What could this be, and should I be worried?

It sounds like you may be experiencing symptoms of acid reflux or gastritis, which can cause chest pain along with gas problems. I recommend taking an antacid medication like Tums (calcium carbonate) 500mg tablets for immediate relief of gas and chest pain. You can take 2 tablets as needed, up to 4 times a day. Additionally, you can try avoiding spicy and acidic foods, eating smaller meals, and avoiding lying down right after eating to help manage your symptoms. If the pain persists or worsens, please seek medical attention.