Feeling so stressed

I have had a return of reflux after I had this for 12 months 4 years ago. Nothing worked to get rid of it and eventually it went away. Living with it though was extremely stressful. It disappeared but then I devolped knee pain and insomnia. A couple of weeks ago I went to the movies and I ate salted nuts (which I dont normally eat). When I got home I had dinner then about an half hour later my bellie swelled and I was in extreme pain and wind. I could bearly move it was that painful. Eventually i vomited and my bellie went down and I settled. For the next week I ate normal only feeling slightly sensitive in my stomach. Then by the following weekend reflux back. Did this episode cause this reflux? Last time I was fully checked out and nothing was sinister. It feels constant not much relief tablets dont help and I have adjusted my diet to be a bit more bland. I am terrified that this current episode will be like the last time for such a long time. I pretty sure this is tms. Last time I had reflux I didnt suffer from the anxiety that I do now. So I am worried this will be for a long time. I just cant seem to get a handle on my fear . Any suggestions?