One day i was eating peanut butter crunchy and it got stuck in my food pipe..since then i was having some pain in my chest for a week. This incident happened almost 3 months back but i still feel some uneasy feeling. Sometimes I feel some kind of vibration on my lower chest region (left side) and also i been having back pain for past two weeks. Should I be worried or is it something related to acidity. It sometimes pain just below the mid region of chest. Thank you doctor!