I am 53 yr old female, 5 5 weight 170 experienced pain in upper abdomen, under breasts like a tightening that spread up to shoulders tried walking, sitting, lying down, deep breathing to relax, then a sudden feeling of coolness radiated from my midsection down to groin and out arms. Have been experiencing severe leg cramping prior to this. I am a smoker. Have osteoarthritis. Could this be a deep vein issue?