Release capsule symptoms and conditions

Well, I haven't had any side effects with omeprazole, but I just got home from my gastro doctor who prescribed what he called a slightly stronger version of Prilosec, and they filled my prescription with omeprazole, and reading all of these postings I don't think I will be taking it until I call back and have a conversation with him. Last August I was diagnosed with acid reflux/anxiety and was given a prescription of ranitidine wich I tolerated and which is in Zantac anyway, which I also tried....I was also prescribed clonazepam for my anxiety which has helped. My main annoyance when this all started was a slight shortness of breath, went to the ER two days in a row, they did EKG's and found some spikes that they thought were unusual and made me an appointment to have a stress test with a cardiologist....all of which came back normal....
I have been back and forth to my regular GP. He says my heart and chest are fine, breathing is fine. I have taken everything you can think of over-the-counter from Mylanta to Zantac, but Pepcid seems to help the most...anyway, to make a long story short, the last time I went to my GP I explained I was still having the constant belching all day, the spitting up, not a lost of reflux, mostly liquid, and he gave me a coupon for a new drug called Kapidex....
It is similar to this omeprazole I believe as it is a time-release capsule.
With Kapidex, you get the release of the proton pump inhibitor, then 4 or 5 hours later the release of a medicine that is supposed to work toward healing any EE that might have occurred with the reflux...I took 1 capsule and felt so wiped out I decided not to continue it, couldn't take it and work a mid-day shift as well, but there were no other side effects to it, and I checked online and people had mostly positive things to say about it, so I might call him and see if I can get a lower milligram dosage of it as he started me off with 60 mill.
Glad I got on here and found this web site with people posting their experiences with omeprazole before I actually took one. I am going to call my doctor back and inform him or someone of all the horror tales I have come across on this web site.
I had two gastric tests, a barium swallow and x-rays and a stomach ultra sound....what they found was a bit of GERDS in my upper digestive tract, but it is nothing I can't tolerate so far compared to the horrible experiences I have read here....I hate to take any medications, but I think I will stick with my Pepcid and my clonazepam until I talk to my gastroenterologist again...
I hope everyone is well....

I prescribed Omeprazole about 8 days ago. After several days I started feeling heart palpitations, shortness of breath, tightness in my chest and I was extremely nervous. I couldn't sleep at night because the symptoms were worse when I would lay down. I was ready to call my doctor and have my heart checked meanwhile I kept searching the internet about the meds I take. Then I find postings about Omeprazole and so many people are describing the same symptoms as I am having. I stopped taking the medication 2 days ago and the symptoms are subsiding. I see where it takes several days to get totally out of ones body because it is an extended release capsule. This drug needs to be re-evaluated by the company.