question: I am 62 yr old female and have been in excellent. I eat very healthy and workout 5 days per week for 60-90 mins. Recently I have been getting sharp intermitten pain on right side (obliques)and back. Sometime lower abs. Severe pain occurs 3-5 times per day and also occuring in middle of night waking me up. Pain lasts about 30 mins. What could be causing this?