They may be consumed up to the use by date. Unopened deli meats generally keep for two weeks. However, once the package is opened, the use by date is meaningless; the meat should be consumed within 3-5 days. This is because anti-oxidative gases that preserve pre-packaged deli meats escape from the packaging once it is opened. Unopened packaged deli meat can be frozen for one to two months.
Chest soreness that is caused by working out used to be attributed largely to the buildup of lactic acid, which is a waste product created by the muscles when strained.
2 I have been feeling chest tightness over the last few weeks what could it be? Dr. Gutti Rao Dr. Rao. 1 doctor agreed: CP: Chest tightness or pain could be due to various reasons- musculoskeletal, acid reflux, hear problems, esophageal spasm, gall bladder disease, aneurysms, blood clot in lungs etc. If you are having pain for so long , you need to get checked. 3 Getting over a cold, now with tightness in chest with a dry cough. Dr. Michael Sparacino Dr. Sparacino. See your doctor: Having recurring illness is troubling. In order to achieve a specific and correct doagnosis with symptoms like this, you'll need to visit your doctor.