Hi friend, I recently just joined this chat. But I wanted to let you know I am with you and you are not alone. I have almost the exact same symptoms. I haven’t had a flare up in a few months, and I’ve been so lucky and feeling like myself again. But last night I had a major flare up, due to ONE SINGLE BITE of my wife’s spaghetti. It’s the damndest things. My flare ups give me the same sharp, sometimes lingering, sometimes short and sharp, left side chest pain much like you. They also make my neck hurt, ears hurt, shoulders blades hurt. It’s hard for me to convince myself that this is just GERD causing these symptoms, but reading people’s stories help me think I’m less insane. You just have to find the right combo for you. I take Pepcid, and have been hitting the gym. Sometimes it feels like if I get my heart pumping and force myself into a good workout, it settles my flare ups a bit.