Hi
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This can be a panic attack or a bad acid reflux. Take Omeprazole empty stomach in morning and an antacid gel at bedtime. Refrain from smoking, alcohol, fuzzy drinks and spicy food. See if this helps.
Do discuss this with your doctor and get yourself examined. Take care!
Have you ever experienced panic attacks? I have had similar experiences which in my case were panic attacks. It never hurts to call and talk to your dr to see if they want to give you an exam. I always feel it's better to be safe than sorry. Take care.