Health anxiety or real problem

Hi everyone- I am 11 weeks post op tummy tuck. Two weeks ago I was diagnosed with horrible GERD. Stomach acid literally in my throat and mouth, blisters on my tongue. The ER said it could be a potential compilation from the TT. I’m taking meds for it and it has subsided somewhat- I have a GI appointment on the 24th to schedule an endoscopy. My anxiety has been so incredibly high since my surgery. Everyday I wake up and I’m scared that I’m going to have a panic attack or an acid reflux attack. I’ve been to the ER so many times and my primary. I feel like they just see “anxiety” and write me off. I get shortness of breath and difficulty taking a deep breath so often that I’m worried something is really wrong. I’m spiraling here, I realize. Im just worried that the tightness is causing issues with my lungs or heart and making it hard for me to breathe.