I have been experiencing weird symptoms for 3 weeks. It started suddenly with GERD-like sensations, vomiting, tremors, lightheadedness and feeling anxious. I have been to several doctors, my blood work is okay. The symptoms subsided and I felt okay for a couple of days but I felt fear that it would come back. And it did, this time no vomiting, but there were: nausea, fast heart rate, trembling, hot flashes, feeling a bit dizzy/confused and anxious. It lasted 3 days, then for 5 days I've felt okay. And a few days ago it came back.

During these episodes I almost feel like I have a fatal disease and like I'm going to die. I ruminate over the symptoms. But I start feeling better once I busy myself with some more complicated tasks. 

There were no very stressful events in my life recently, but 2,5 months ago my mom ended up in hospital and I had a very tough time. 

Have any of you had similar symptoms with such a sudden onset? My gp put me on trazodone for sleep and told me to wait and see if it helps. I wonder if this really could stem from psychological problems. I don't want anyone to diagnose me, I want to compare stories.