I have woke up in the middle of the night 3 times with a sqeezing sensation in the middle of my chest and between my shoulder blades. I am 55, went into cardiac arrest and had anMI in Dec 2010. I have had 2 stent placements. Is this  something I should be overly concerned about or could it be GI related.
Thanks for your question on Chat Doctor. I can understand your concern. Yes, you should definitely concern about this squeezing type of pain. Possibility of cardiac chest pain (angina) is more because you already had MI (myocardial ischemia). So immediately consult doctor and get done ECG, 2d echo and stress test (trade mill test) to rule out heart diseases. If all these reports are normal then HERD (gastroesophageal reflux disease) can be the cause. It is due to laxity of gastroesophageal sphincter. Because of this the acid of the stomach tends to come up in the esophagus and cause the central squeezing type of pain. So take proton pump inhibitors and prokinetic Chat Doctor.  Avoid hot and spicy food. Don't worry, you will be alright, but first rule out cardiac chest pain. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.